curriculum vita january 31, 2016 karl theodore hartwig · curriculum vita january 31, 2016 karl...

Curriculum Vita - Karl Theodore Hartwig, Jr. 03/27/2014 of 38

Curriculum Vita January 31, 2016

Karl Theodore Hartwig

Texas A&M University Telephone: (979) 845-1585

Materials Science and Engineering Department Fax: (979) 862-2418

220 Red McDonald Building E-mail: [email protected]

College Station, Texas 77843-3003, USA

Education:

Univ. of Wisconsin-Madison

9/64-1/69 B.S. Nuclear Engineering

Univ. of Wisconsin-Madison

1/69-1/70 M.S. Nuclear Engineering

Univ. of Wisconsin-Madison 9/73-8/77 Ph.D. Metallurgical Engineering

Dissertation Title: "A Study of Dilute Al-Au Alloys for Superconductor Stabilizer Applications" Professor

Frank J. Worzala, Advisor

Carnegie-Mellon University

Professor T.B. Massalski, Advisor

9/77-8/78 Post Doc Amorphous Metals (CMU),

Aluminum Alloys for

Cryoconductors (UW-Madison)

Professional Engineer Registration:

State of Texas License No. 68069, Granted July 20, 1990

Honors and Awards:

Bausch and Lomb Physics Award, 1964

NSF Traineeship in Nuclear Engineering, 1969

NSF Post-Doctoral Energy Fellowship, 1977 to Carnegie-Mellon University

TAMU Engineering Excellence Grant, 1987

Senior Texas Engineering Experiment Station (TEES) Fellow, 1987/88, 1988/89 and 1989/90

International Advisory Editor, Cryogenics, 1987-Present

Member Manuscript Review Board, J. of Materials Engineering of ASM International,

1988-1998

President Reagan Appointee to National Commission on Superconductivity, 1988

Elected to International Cryogenic Materials Conference (ICMC) Board, 1989

L.C. McDonald (MS/Ph.D. Student of KTH) received "Best Paper" Award at ICMC 89:

L.C. McDonald and K. T. Hartwig, “Creep of Pure Aluminum at Cryogenic

Temperatures,” Adv. Cryo. Engr., Vol. 36A, pp. 1135-1141 (1990).

Elected to Association for International Practical Training Board, 1991

L.C. McDonald (MS/Ph.D. student of K.T. Hartwig) won a “Meritorious Paper Award” at

ICMC 93: L.C. McDonald and K.T. Hartwig, “Eddy Current Determination of the

Effects of Cyclic Strain and Temperature on the Magnetoresistivity of Pure Aluminum,”

Adv. Cryo. Engr., Vol. 40, pp. (1994).


Received 1997 TEES Engineering Program Safety Excellence Award.

Awarded E.D. Brockett Professorship by the College of Engineering, Texas A&M University,

in 2007.

Awarded Outstanding Graduate Teaching Award, Mechanical engineering Department, Texas

A&M University, 2008.

S. Balachandran (MS/PhD student of K.T. Hartwig) received a “Meritorious Paper Award” at

the 2009 International Cryogenic Materials Conference. The paper title: “Fine grained

niobium for internal tin Nb3Sn conductors”.

Research Interests:

(a) Development of improved materials for various applications: electrical conductors

including superconductors, light weight structures, high density structures, and human

implants (Mg and Ti).

(b) Understanding structure-property-processing relationships in metal alloys.

(c) Severe plastic deformation processing of solid and particulate materials via equal

channel angular extrusion (ECAE).

(d) Applied superconductivity - superconductor stabilizer materials and conductor design.

(e) Material failure analysis.

Experience:

Consulting

Technical Consultant and Expert Witness

Periodic assignments from industry, government, or legal firms related to materials

design, processing, properties, selection, and failure analysis.

Shear Form, Inc. (SFI), 207 Dellwood Street, Bryan, Texas 77801, 2003-present.

Owner and President

SFI was established in 2003 as a spin-off company enabled by intellectual property

developed at Texas A&M University. The company has licensed several patents from

TAMU, and does severe plastic deformation processing of metal alloys, and

designs/builds/sells equipment for equal channel angular extrusion (ECAE) processing.

Texas A&M University, College of Engineering, College Station, Texas, 1986 - Present

Teaching and Research in the Materials Science and Engineering (MSEN), and Mechanical

Engineering Departments:

Associate Professor 1986, tenured 1991, Professor 1999. Teaching assignments in

materials science and engineering, engineering science, experimental methods, and

scientific writing. Research programs in the science and technology of severe plastic

deformation materials processing, amorphous metal alloys, sub-micron and nano-

structured materials, materials at low temperatures, biomaterials, and applied

superconductivity.

Teaching Abroad:


Taught Materials and Design (MEEN 475) and Properties of Matter (ENGR 213) to College

of Engineering Summer Abroad students in Sceaux, France during July and August 1999.

University of Wisconsin at Madison, Department of Engineering Professional Development,

College of Engineering: Visiting Professor from September 2006 through May 2007 during

which I taught a graduate course (EPD 597) in Scientific Writing.

University of Wisconsin, College of Engineering, Madison, Wisconsin, 1971-1986

Applied Superconductivity Center, Engineering Experiment Station:

Lecturer Metallurgical Engineering 1979-80, Assistant Scientist 1979-1980, Associate

Scientist 1980-1984, and Senior Scientist 1984-1986. Teaching assignments in materials

science and metallurgy. Supervised undergraduate and graduate student research.

Directed research in several areas on composite superconductor development for

Superconducting Magnetic Energy Storage (SMES). Was chief editor for all major

SMES reports between 1973 and 1985.

Nuclear Engineering Department, 1971-1973:

Engineer and Assistant to the Chairman. Calculated refueling plans for TRIGA reactor

and assisted with N.E. Department program management.

Metallurgical Engineering Department, 1973-1977:

Project Assistant and Graduate Student, assisted with proposals and reports. Studied

physical and mechanical metallurgy of dilute Al-Au, alloys.

Madison Area Technical College, Madison, Wisconsin, 1971.

Physics Department

Teacher of first semester physics.

TRW Systems Group, Redondo Beach, California, 1970-1971

Nuclear Systems Department:

Technical Staff Member; evaluated space power systems. Had AEC, Q, and DOD

SECRET security clearances.

Professional Service:

American Society for Metals International

Texas A&M University ASM Student Chapter Faculty Advisor 1986-1987

Member since about 1972.

Association for International Practical Training (AIPT)

Member, Board of Directors 1991-2001

Member, Executive Committee 1994-1999

Member, Advisory Committee for International Associate for the Exchange of Students

for Technical Experience (IAESTE) 1994-present

Chair, Nominations Committee, 1999-2000

City of College Station, Public Schools System: Materials Science demonstrations to

elementary school children for annual “Science Day” activities (1992, 1993, 1997).

Cryogenic Society of America


Roger W. Boom Award Selection Committee, 2000-Present

Cryogenics (the international journal), International Advisory Editor (1987-present)

Department of Defense (DOD), Review Panel for the National Defense Science and Engineering

Graduate (NDSEG) Fellowship Awards: 1992, 1993, 1995, 1999, 2000, 2001, 2002

International Cryogenic Materials Conference (ICMC)

Board Member 1989 - present

Program Committee for ICMC-1983, ICMC-1987 and ICMC-1993

Program Chairman, ICMC-1991, Huntsville, Alabama, June 11-14; ICMC-1995,

Columbus, Ohio, July 17-21, 1994; ICMC 2003 - Anchorage, Alaska, September

12-16, 2003

Member Education Committee, 1992-present

Conference Chairman, ICMC-1993 Albuquerque, New Mexico, July 12-16

Board Chairman, 1996-2001

Technical Editor Physical/Mechanical Properties, “Advances in Cryogenic Engineering -

Materials,” Vol. 44, (1998), Vol. 46 (2000), Vol. 48 (2002), and Vol. 56 (2010)

Site Selection Committee for 2003 Conference

Treasurer 2004-present

Materials Research Society

The Metallurgical Society (TMS) of AIME

Member (periodically from ~1975-present)

National Commission on Superconductivity 1988-1990

Texas A&M University

Mechanical Engineering Department

Materials and Manufacturing Division Leader, 1993-1996, 1998-2010.

Executive or Advisory Committee, 1993-1996, 1998-2010.

Faculty Activity Reports Review Committee, 1994, 1998, 2001 – 2005.

Faculty Search Committee, 1997, 1999, 2000, 2002 – present.

Tenure and Promotion Committee 1999-2004 (Chair in 2003) and 2008-2013.

Graduate Studies and Research Committee 1999-2000.

Graduate Student Seminar (681), Speaker Search Committee, Member, 1999-

2000.

Member, Marcus C. Easterling Chair Search Committee, 1999-2000.

Chair, Materials Faculty Search Committee 1999-2000, 2008-2009, 2010-present.

Post Tenure Review Committee 2012-2013.

Materials Science and Engineering Department

Tenure and Promotion Committee, 2014 – present.

Faculty Search (Polymer) Committee, 2014 – present.

College of Engineering

TEES Advisory Council, 1994-1996

Materials Science/Mechanics and Materials Initiative Committee, October 1994-

1997

TEES Research Awards Committee, 1996

Cohort to Flip STEM Courses for the College of Engineering, 2013-present.

Texas A&M University

Mini-Grant Proposal Review Committee - 1996-2002


TAMU Faculty of Materials Science and Engineering (FMSE) Executive

Committee - 1997-2000, 2002-2004

AUF Nanotechnology Faculty Search Committee, 2002

Texas A&M University Circle K International (a service organization), Faculty Advisor, 2011 –

present.

Courses Taught at Texas A&M University:

MEEN-222 Materials Science

ENGR-213 Principles of Engineering III (Conservation Principles/Properties of Matter)

MEEN-340 Structure and Properties of Metals and Alloys

MEEN-341 Engineering Materials

MEEN-360 Materials and Manufacturing Selection in Design

MEEN-404 Engineering Experimentation

MEEN-475 Materials and Design

MEEN-485 Advanced Problems in Mechanical Engineering

MEEN-489 Advanced Materials Independent Study

MEMA-609 Materials Science

MEMA-614 Physical Phenomena in Materials

MEEN-653 Scientific Writing

MEEN-689 Cryogenic Engineering

MEEN-689 Applied Superconductivity

MEEN-691 Graduate Research

Undergraduate Student Supervision:

1. Jerome G. Weisenfelder, MEEN 485 project, “Pure Al Properties and Availability,” Spring

1987.

2. Edgar O. Castro, MEEN 485 project, “Algorithm for Resistivity Calculations for Pure Al,”

Summer 1987.

3. Daniel Lee, “Room Temperature Resistivity Device,” MEEN 485 project report, February

5, 1993.

4. Preston S. Galusky, “Room Temperature Resistivity Measurements of ECAE 110 Copper,”

MEEN 485 project report, May 14, 1993.

5. Michael W. Gillenwater, “Sensitivity of Eddy Current Decay Method RRR Determinations to

Groove Dimensions on the SMES Conductor Stabilizer,” MEEN 485 Project Report, May 1,

1994.

6. John T. Hardesty, “A Study of the Effects of ECAE on Dispersion Strengthened Copper (Cu-

Al2O3),” MEEN 485 Project Report, August 1995.

7. Andrea Nixon, “Cryogenic ECAE and an Example of Grain Structures Developed Across

the Shear Zone in ECAE,” MEEN 485 Final Report, May 1996.

8. Robert Nichols, “Joining Dissimilar Metals Via ECAE,” MEEN 485 Final Report, May 1996.

9. Kelsie Yoshida, “Hardness Measurements of Extruded Copper and Aluminum,” independent

study, September 1996-May 1997.


10. Paul Alexander, “Experiments with Angular Extrusion and Metal Working,” independent

study, September 1996-May 1997.

11. Enrique Garcia, “Microstructure and Hardness of Cryoformed Pure Copper,” honors credit,

January-May 1997.

12. Garrett T. Olsen, “Recrystallization Grain Size as a Function of Percent Cold Work by ECAE

and Initial Grain Size,” College of Engineering Undergraduate Summer Research Grant under

the “Research Experience for Undergraduates” – summer 1998, program sponsored by NSF,

OTRC, and Texaco, June-August 1998.

13. Garri K. Bush, “An Examination of the Effects of ECAE on the Properties of Powdered

SS316,” College of Engineering Undergraduate Summer Research Grant under the “Research

Experience for Undergraduates” – Summer 1998, program sponsored by NSF, OTRC, and

Texaco, June-August 1998.

14. Chris Stringer, “Design and Fabrication of a Vacuum Furnace System,” MEEN 485 Project,

Spring/Summer 1999.

15. Erik Ostergaard, “Recrystallization in Heavily Deformed Pure Cu,” MEEN 485 Project,

spring 1999.

16. Chris Burris, “Consolidation of Advanced Powders by Simple Shear,” College of Engineering

Undergraduate Summer Research Grant under the “Research Experience for Undergraduates,”

– Summer 1999, program sponsored by NSF, OTRC, TEES, and Texaco, June-August, 1999.

17. Sarah Russell, “Grain Refinement in Heavily Deformed Pure Iron,” College of Engineering


– Summer 1999, program sponsored by NSF, OTRC, TEES, and Texaco, June-August, 1999.

18. Cheryl Beasley, “Consolidation of Stainless Steel Powder by ECAE,” College of Engineering


- summer 2000, program sponsored by NSF, OTRC, TEES, and Texaco.

19. Ferdinand Vélez, “ECAE Scale-up Effects,” College of Engineering Undergraduate Summer

Research Grant under the “Research Experience for Undergraduates,” - summer 2000,

program sponsored by NSF, OTRC, TEES, and Texaco.

20. Tiffany New, “Development of a 360 Laboratory Experiment on Metal Working,” College of

Engineering Undergraduate Summer Research Grant under the “Research Experience for

Undergraduates 2001 Program,” sponsored by NSF, ITRC, TEES, and Texaco.

21. Karl Crouch, “Design and Fabrication of a Heater Control System,” MEEN-485 Project and

College of Engineering Undergraduate Summer Research Grant under the “Research

Experience for Undergraduates 2001 Program,” sponsored by NSF, ITRC, TEES, and

Texaco.

22. Daniel LeBourgeois, “Recrystallization of CDA 101 Cu Following Different ECAE Plus

Annealing Schedules,” MEEN 485 Project, spring 2005.

23. Michael L. Hamilton, “Recrystallization of CDA 101 Cu Heavily Deformed by ECAE and

Rolling,” MEEN 485 Project, spring 2005.

24. Joshua Vernon, “Recrystalization and Grain Growth in Niobium”, MEEN 485 Project, spring

2008–Fall 2009.

25. Nathan Miller, “"Grain Refinement of Nb. and Ta bar and Sheet", Independent Study,

Spring 2010.

26. Doug Krebs, "Fixture Building and Specimen Preparation for MSEN experiments", spring

2011- Fall 2012.


27. Natalie Abbarno, "Collaborative Project with Shreyas Balachandran on Recrystallization

and Grain Growth in Nb", Spring 2013.

28. Abram Gutierrez, "Laboratory Assistant with Fixture Building and Sample Preparation",

Fall 2011.

29. Johnathan Zeek, "Laboratory Assistant with Fixture Building and Sample Preparation”,

Spring 2012.

30. Chris Janek, "Laboratory Assistant with Fixture building and Sample Preparation",

spring 2012.

31. John Robinson, “Microstructure Evolution in ECAE Processed Pure Ta", spring 2013.

32. Nathan Seymour, "Microstructure Evolution in ECAE Processed Pure Nb", Spring 2013.

33. Ryan Mezynski, “Microstructure Characterization of ECAE Processed Pure Nb," spring

2011- fall 2012

34. Michael Bass, "Laboratory Assistance with Sample Preparation", fall 2011- fall 2012.

35. Nathan Seymour, lab assistant and sample preparation, 2012-2013.

36. Chris Janak, lab assistant and sample preparation, 2013-2014.

37. Jessie Anderson, lab assistant and sample preparation, 2013-2014.

38. John Robertson, lab assistant and sample preparation, 2014-2015.

39. Alexander Demblon, lab assistant and sample preparation, 2014-2015.

35. Pablo Leon, Laboratory assistant and sample preparation, fall 2015 – present.

Graduate Student Supervision:

1. James T. Gehan, M.S.-M.E. Thesis, December 1988, “Total Plastic Strain and Electrical

Resistivity in High Purity Aluminum Cyclically Strained at 4.2 K.”

2. Rolf G. Irrgang, Diplomarbiet (Ruhruniversitat Bochum) in Mechanical Engineering, July

1989, “Development of a Model to Simulate the Cyclic Plastic Behavior of Pure Aluminum

for Superconductor Stabilizer Material.”

3. L. Clark McDonald, M.S.-M.E. Thesis, August 1989, “Creep of Pure Aluminum at Cryogenic

Temperatures.”

4. Burl C. Tanner, M.S.-M.E. Thesis research, withdrew January 1991, “Cryostrain Effects in

Pure Aluminum.”

5. Raymond J. DeFrese, M.S.-M.E. Thesis, May 1991, “Low Temperature Electrical and

Mechanical Behavior of Composite Aluminum Cryoconductors.”

6. Chad L. Watts, M.S.-M.E. Thesis, August 1993, “Support System Design for a

Superconducting MRI Magnet.”

7. Paul C. Sundby, M.S.-M.E. Thesis, May 1994, “Electrical and Mechanical Properties of

Aluminum Composite Cryoconductors.”


8. L. Clark McDonald, Ph.D.-M.E. Dissertation, December 1994, “A Study of Microalloyed

Pure Aluminum for Low Temperature Superconductor Stabilizer Applications.”

9. Hong Zou, M.S.-M.E. Thesis, May 1995, “Electrical and Mechanical Studies of High Purity

Aluminum Single Crystals at 4.2 K Under Cyclic Strain.”

10. Joel D. Harper, M.S.-M.E. Thesis research, withdrew 1995, “Eddy Current Decay Signal

Analysis.”

11. Walt J. Surovik, M.S.-M.E. Thesis, December 1996, “Sheath Thickness Measurements on

Composite Conductors Using NDE,” co-advised with D.E. Bray

12. Stephane Ferrasse, M.S.-M.E. Thesis, May 1995, “Grain Refinement Using ECAE in Bulk

Sections of Copper 101 and Aluminum Alloys 3003 and 6061,” co-advised with R.E.

Goforth.

13. Srinivas Mirmira, M.S.-M.E. Thesis, December 1995, “Characterization of Mechanical

Properties of Aluminum 3003, 6061, and 7075 Subject to ECAE,” co-advised with R.E.

Goforth.

14. SuJin Yun, Ph.D.-M.E. Dissertation, May 1996, “Finite Element Modeling of Equal Channel

Angular Extrusion,” co-advised with R.E. Goforth.

15. Zal K. Parakh, D. Engr.-M.E., withdrew 2001, “A Record of Study: Systems Engineering for

Communication Networks.”

16. John W. Sinclair, Ph.D.-M.E. Dissertation, May 1999, “Microstructures and Mechanical

Properties of Al 5083 Processed by ECAE,” co-advised with R.E. Goforth.

17. Max Gibbs, Ph.D.-M.E. Dissertation, December 2000, “Texture of Body Centered Cubic

Metals Processed by ECAE,” co-advised with R.E. Goforth.

18. Hanadi A. Ghnoeim Salem, Ph.D.-M.E. Dissertation, December 1997, “Influence of ECAE

Processing on the Physical, Mechanical, and Microstructure of Al-Cu-Li Based Alloys,” co-

advised with R.E. Goforth.

19. Derek Bier, M.S.-M.E. Thesis, August 1997, “Strain Uniformity Through ECAE.”

20. John Pearson, M.S.-M.E. Thesis, December 1997, “Consolidation of Al 6061 Powder by

ECAE.”

21. Mohammed Shadat, M.S.-M.E. Thesis, December 1997, “The Effect of ECAE on the

Microstructure and Mechanical Properties of AISI 1552, AISI 4340, and A2 Tool Steel,” co-

advised with L.R. Cornwell.


22. Todd Hathaway, M.S.-M.E. Thesis research, withdrew May 1997 to join the Navy,

“Consolidation of Aluminum Alloy 6061 Powders Using ECAE.”

23. Simone Leipert, MEEN 685 independent research project on “Microstructures of Heavily

Deformed Tungsten Heavy Alloys,” 1/15/97-5/15/97.

24. Simone Leipert, M.S.-M.E. Thesis, May 1999, “The Influence of ECAE on Texture Evolution

in Pure Tantalum.”

25. Humberto Zapata, M.S.-M.E. Thesis, December 1998, “Application of ECAE to Consolidate

Al 6061 Powder."

26. Robert Barber, MEEN 685, “ECAE Scale-up Design and Analytical Study,” Fall 1998.

27. Anastasios Parasiris, MEEN 685, “Characterization of NiZr and NiAl Powder Composites

Processed by Simple Shear,” Summer 1998.

28. Anastasios Parasiris, M.S.-M.E. Thesis, August 1999, “Consolidation of WC-Co by Simple

Shear.”

29. Suveen Mathaudhu, M.S.-M.E. Thesis, December 2001, “Recrystallization in Severely

Deformed Pure Tantalum.”

30. Suveen Mathaudhu, Ph.D.-M.E. Dissertation, December 2005, “Amorphous Metal Matrix

Composites.”

31. Jae-Taek Im, M.S.-M.E. Thesis, May 2001, "Severe Plastic Deformation of Bi2Te3."

32. Jae-Taek Im, Ph.D.-M.E. Dissertation, August 2007, “Grain Refinement and Texture

Development in 90 Bi 10Sb Alloy Processed by Equal Channel Angular Extrusion.”

33. Mohammed Haouaoui, M.S.-M.E. Thesis, December 2001, "Characterizations of Severely

Deformed and Annealed Copper."

34. Chris Horan, M.S.-M.E. Thesis, December 2001, “Properties of OFHC Copper Severely

Deformed at 77K.”

35. Zhiyong Xia, Ph.D.-M.E. Dissertation, May 2001, “Angular Extrusion of Thermoplastic

Polymers,” co-advised with H.J. Sue.

36. Don Bryant, M.S.-M.E. Thesis, May 2006, “Work Hardening, Recrystallization, and Grain

Refinement in Severely Deformed Pure Nb.”

37. Brent Chance, Ph.D.-M.E. Dissertation, withdrew 2003, “The Stress Relaxation Phenomena

in Welded Steel Plate.”


38. Nathan Kelley, M.E. Project Report, August 2003, “Corrosion of Pure Copper as a Function

of Level of Cold Work and Grain Size,” co-advised with R. Griffin.

39. Steven Soto, MEEN 685, “Design, Fabrication, Characterization, and Operation of a High

Temperature Vacuum Furnace System,” Summer 2002.

40. Bola Onipede, M.S.-M.E. Thesis, December 2005, “Design of an Area Reduction Tool.”

41. Stephanie Blum, Diplomarbiet (Technical University of Munich) in Mechanical Engineering,

May 2004, “Microstructural Characterization of Recrystallized Nb After Severe Plastic

Deformation.”

42. Sameer Khandehar, M.S.-M.E. Thesis, May 2004, “Design and Construction of a Magnetic

Force Microscope.”

43. Shabibahmed Kadri, M.S.-M.E. Thesis, August 2005, “Scale-up Effects of ECAE Processed

Cast OFHC Copper.”

44. Garrett Olsen, Ph.D.-M.E. Dissertation, dropped out Fall 2006. “Texture Development in

BCC, FCC and HCP Metals Processed by ECAE.”

45. David Foley, M.S.-M.E., Thesis, December 2007, “Microstructure Development in T91

Processed by ECAE.”

46. Shreyas Balachandran, M.S.-M.E., Thesis, December May 2008, “Microstructure Evolution in

Niobium Sheet Processed by ECAE.”

47. Rahul R. Murudkar, MS, December 2009, “SPD of Metal Sheet by Corner Drawing,”

Research Committee Chair Jyhwen Wang (ET).

48. Hussain Riaz, MS, dropped, “Metal Working.”

49. Venkata Vasiraja, MS, May 2011, “ECAE processing of WHA.”

50. Zach Leven, PhD, expected August 2015, “Improving the Ductility of Pure Tungsten.”

51 Miao Song, PhD, expected August 2014, “Radiation Tolerant Steels for Generation IV

Nuclear Reactors”.

52. Yi-Tang Kao, MS, December 2014, “Electrical resistivity and hardness changes in ECAE

Processed Copper alloys.”

53. David C Foley, PhD, Expected August 2014, “ECAE Processing of Mg alloys.”


54. Shreyas Balachandran, Expected August 2014, “ECAE Processing of Pure Nb for

Superconductor Applications.”

55. Abhinav Srivastava, PhD MSEN, expected December 2019, “Mg for bio-implant

applications.”

56. Ramatou Ly, PhD MSEN, expected December 2018, “Enhanced corrosion in aluminum

alloys.”

57. Jason Springs, MS MSEN, May 2017, “Properties and microstructure of pure Cu following

severe plastic deformation.”

Foreign Engineer/Scientist Sponsorships:

1. Daniel Frutschi, Swiss IAESTE Trainee, 11/17/86-5/31/88. Project: Design and build a

mechanical test fixture for low temperature cyclic strain-resistivity research.

2. Chong Yuan Hua, TAMU Research Associate, Visiting Scientist from the General

Nonferrous Metals Research Institute - Beijing, China, April 1, 1987 - September 30, 1988.

Project: Establishment of a low temperature high magnetic field test facility at Texas A&M

University.

3. Josef Roelli, Swiss IAESTE Trainee, 11/1/87-3/31/89. Project: Design, build and proof test a

variable temperature mechanical test fixture for low temperature cyclic strain-resistivity

research.

4. Allan J. Lumbis, Canadian IAESTE Trainee, 9/1/88-11/30/89, Project: Design and build eddy

current decay coils for resistivity measurements and operate cyclic test rig.

5. Thomas Mettler, Swiss IAESTE Trainee, 9/1/89-1/19/90. Project: Assist with cryogenic

testing of pure aluminum and complete annealing study on pure aluminum.

6. Michael C. Pini, Swiss IAESTE Trainee, 9/17/92-3/15/93. Project: Assist with cryogenic

testing of pure aluminum and design and build various test fixtures.

7. Hua Chong Yuan, TAMU Research Associate, Visiting Scientist from the General

Nonferrous Metals Research Institute-Beijing, China, April 1, 1993 - March 31, 1994.

Project: Eddy current decay measurements on SMES-ETM composite superconductor

Aluminum stabilizer bars.

8. Åsa Jonson, Swedish IAESTE Trainee, 7/1/95-5/1/96. Project: ECAE R&D: tool and die

design, scale up, cryoforming and ECAE plus rolling.


9. Annette Lohoff, German IAESTE Trainee, 2/1/97-7/31/97. Project: Assist with powder

consolidation using ECAE.

10. Mohammed Haouaoui, Moroccan IAESTE Trainee, 6/16/97-5/15/98. Project: Assist with

ECAE scale-up and powder consolidation experiments.

11. Reto Haggenmueller, Swiss IAESTE Trainee, 4/15/98-9/11/98. Project: Assist with analysis

of ECAE processed pure Ta.

12. Karsten S. Rassmussen, Danish IAESTE Trainee, 7/99-12/99. Project: Build and test vacuum

furnace and assist with ECAE processing and characterizing of various materials.

13. Juraj Belan, Slovokian IAESTE Trainee, 7/01-12/01. Project: Assist with consolidation of

powdered amorphous Zr-based alloy and Su-Cu + SiO2 powder blend.

14. Flavio Matos, Brazilian IAESTE Trainee, 8/02-6/03, Project: Assist with DARPA-SAM and

Nb projects.

15. Stephanie Blum, German IAESTE Trainee, 8/03-4/04. Project: Microstructural

Characterization of Recrystallized Nb After Severe Plastic Deformation.”

16. Suvi Tiirikainen, Finish IAESTE Trainee, 8/04-7/05. Project: Microstructural

Characterization of ECAE Processed and Rolled Pure Ta.

Research Associates

1. I have supported Mr. Robert E. Barber as a student worker, graduate student, and

research associate since 1998. He currently supervises and teaches both undergraduate

and graduate students in machine shop practice, research fixture building, and sample

preparation methods.

Research Contracts and Grants (External Sponsors):

1. “Dilute Aluminum Alloys for Moderate Strength High Conductivity Applications,” NSF

Energy Fellowship, K.T. Hartwig (recipient), August 1977 - July 1978, $12,000.

2. “Aluminum Cryoconductor R&D - Cryogenic Inductors,” U.S. Air Force, K.T. Hartwig (PI),

9/10/86 - 6/30/92, $607,801.

3. “Cryogenic Mechanical and Electrical Testing of Aluminum Cryoconductors,” Alcoa, K.T.

Hartwig (PI), 3/1/87 - Fall 1990, $137,362.

4. “High Temperature Superconductivity Applications,” University of Houston (DARPA), W.

Kirk (PI), K. Pandy (Co-PI), A. Clearfield (Co-PI) and K.T. Hartwig (Co-PI), 5/88 - 10/90.

Project prematurely canceled.


5. “Power Supply/Switch for Eddy Current Decay Measurement System,” Applied

Superconductivity Center, University of Wisconsin-Madison, K.T. Hartwig (PI), 1/90 - 7/90,

$1,467.

6. “Studies on High Conductivity Aluminum - Year One,” Sumitomo Chemical Company, Ltd.,

K.T. Hartwig (PI), 7/1/91 - 6/30/92, $46,781.

7. “Cryogenic Inductors - Phase III,” Alcoa Technical Center, K.T. Hartwig (PI), 3/13/92 -

5/31/93, $75,000.

8. “Studies on High Conductivity Aluminum - Year Two,” Sumitomo Chemical Company, Ltd.,

K.T. Hartwig (PI), 7/1/92 - 8/31/93, $51,635.

9. “Design of Cold Mass Supports for the University of Illinois 4T, Meter Bore MRI Magnet,”

Texas Accelerator Center, F.R. Huson (PI) and K.T. Hartwig (Co-PI), 6/1/91 - 6/30/92,

$15,000 (approx.)

10. “Risk Reduction R&D for SMES by TEES, TAMU System,” Westinghouse Science and

Technology Center, K.T. Hartwig (PI), 1/4/93 - 9/30/93, $165,664.

11. “Thermo-Mechanical Processing of Aluminum-Lithium Alloys,” Rockwell International

Science Center, V.M. Segal (PI), R.E. Goforth (Co-PI) and K.T. Hartwig (Co-PI), 1/15/93 -

9/15/93, $15,000.

12. “The Equal Channel Angular Extrusion Process: A Method of Producing Heavy Uniform

Deformation in Cast U720 Alloy,” Teledyne-Allvac, V.M. Segal (PI), R.E. Goforth (Co-PI)

and K.T. Hartwig (Co-PI), 3/1/93 - 2/28/94, $39,731.

13. “Thermo-Mechanical Processing of TiAl Alloys,” Materials Laboratory, Wright-Patterson Air

Force Base, R.E. Goforth (Co-PI) and K.T. Hartwig (Co-PI), 5/1/93 - 11/1/93, $20,000.

14. “Studies on High Conductivity Aluminum-Year Three,” Sumitomo Chemical Co., Ltd., K.T.

Hartwig (PI), 9/1/93 - 10/31/94, $52,893.

15. “Processing of CDA-101 Copper by Equal Channel Angular Extrusion for High Field Magnet

Applications,” National High Magnetic Field Laboratory, Florida State University,

Tallahassee, Florida, V.M. Segal (PI), K.T. Hartwig (Co-PI) and R.E. Goforth (Co-PI),

10/1/93 - 5/31/95, $17,442.

16. “Mechanical and Electrical Measurements of High Purity Aluminum and Beryllium

Conductors,” Southeastern Center for Electrical Engineering Education, St. Cloud, Florida,

K.T. Hartwig (PI), 8/24/93 - 2/9/94, $8,600.


17. “ECAE Processing of DURALCAN Samples,” Duralcan, R.E. Goforth (PI), K.T. Hartwig

(Co-PI) and V.M. Segal (Co-PI), 7/1/94 - 8/31/95, $4,800.

18. “Cryogenic Inductors - Phase III Add-on,” Alcoa Technical Center, K.T. Hartwig (PI), 1994,

$10,000.

19. “Thermo-Mechanical Processing of High Density Alloys,” Battelle, Columbus Division, K.T.

Hartwig (Co-PI) and R.E. Goforth (Co-PI), 5/10/95 - 5/9/96, $51,000.

20. “Resistivity and RRR Measurements of Aluminum Specimens,” Alcoa, K.T. Hartwig (Co-PI)

and L.C. McDonald (Co-PI), 5/15/95 - 8/31/95, $2,000.

21. “Texture in Cubic Metals Processed Through ECAE,” ORNL - High Temperature Materials

Laboratory, K.T. Hartwig (PI), M. Gibbs (Co-PI), R.E. Goforth (Co-PI), 11/29/95, $0.

22. “High Strain Processing of Al-Ti Composites,” McDonnell Douglas Corp., K.T. Hartwig (PI),

L.R. Cornwell (Co-PI), and R.E. Goforth (Co-PI), 9/1/96 - 5/31/97, $4500.

23. “Equal Channel Angular Extrusion of Aluminum Alloys,” Rockwell International, K.T.

Hartwig (PI), 10/1/96 - 5/31/97, $10,000.

24. “Design of 2-inch 2-inch ECAE Die System for 100-Ton Forge Press at Wright-Patterson

Air Force Base, Ohio,” UES, Inc., R.E. Goforth (PI) and K.T. Hartwig (Co-PI), 12/1/96 -

8/31/97, $16,830.

25. “Experiments on Consolidation of Aluminum Powders Using Simple Shear,” Research and

Development Laboratories (under AFOSR 1997 Summer Research Extension Program) K.T.

Hartwig (PI) and T.C. Hathaway (Co-PI), 1/1/97 - 12/31/97, $25,000.

26. “Development of Fine Grains in Bulk Ta,” H.C. Starck, Inc., K.T. Hartwig (PI), 6/1/97 -

8/31/98, $98,913.

27. Grant for “Compaction of Powders by ECAE,” Rockwell International, K.T. Hartwig (PI),

7/1/97 - 6/30/98, $20,000.

28. “Texture Development in Tantalum Processed Through ECAE,” ORNL - High Temperature

Materials Laboratory, K.T. Hartwig (PI), Max Gibbs (Co-PI), and Simone Leipert (Co-PI),

10/14/97, $0.

29. “Hydraulic Press System for Bulk Simple Shear,” AFOSR (under Defense University

Research Instrumentation Program), K.T. Hartwig (PI), L.R. Cornwell (Co-PI), R.E. Goforth

(Co-PI), and H.J. Sue (Co-PI), 3/1/98 - 2/28/99, $387,275.

30. “Two-Inch Square ECAE Tooling for HCST,” H.C. Starck Inc., K.T. Hartwig (PI) and R.E.

Goforth, (Co-PI), 6/1/98 - 5/31/99, $132,557.


31. “Continuation of HCST Ta Project,” H.C Starck, Inc., K.T. Hartwig (PI), 08/31/98-

05/31/2000, $94,317.

32. “Testing Agreement Between TEES and Pittsburgh Materials Technology, Inc.,” Pittsburgh

Materials Technology, Inc., K.T. Hartwig (PI), 10/15/98-2/28/99, $6,000.

33. “Bismuth Telluride Processed by ECAE,” Marlow Industries, Inc., K.T. Hartwig (PI), 6/1/99-

11/1/01, $102,000.

34. “Testing Agreement,” MRC Division of Praxair Surface Technologies, Inc., K.T. Hartwig

(PI), 10/15/00-2/28/01, $6,000.

35. “High Density Amorphous Metal Matrix Composites for Kinetic Energy Penetrator

Applications,” DARPA/ARO, K.T. Hartwig (P.I.) and I. Karaman (Co P.I.), TEES 32525-

64590, 4/10/01-10/9/04, $705,087.

36. “SBIR/STTR: DSP Alloys - Tubular Filamented Dispersion Strengthened Powder (DSP)

Alloy Core Nb3Sn Superconductor,” DSP Alloys, San Diego, California, K.T. Hartwig (PI),

7/1/01-6/30/02, $15,000.

37. “Synthesis of Highly Stable Amorphous Alloy Powders with High Oxygen Sensitivity,”

DOE-Ames National Laboratory, PI: K.T. Hartwig, Co-PI: I. Karaman, 1/1/02-5/31/02,

$65,000, awarded to the Materials Processing Center at DOE Ames.

38. “Development of a Method and Tool for Deformation Processing of Thermoelectric Alloys,”

Marlow Industries, Inc., Dallas, Texas, K.T. Hartwig (PI), 1/01/02-12/31/03, $98,833.

39. “Microstructural Refinement by ECAE of Electron Beam Remelted Nb,” DOE (LBL),

Berkeley, California, K.T. Hartwig (PI), 6/01/02-5/31/03, $30,000.

40. “ECAE Processing of Pure Nb for Superconductor Applications,” Shear Form (TEES work

is a subcontract on a DOE SBIR Grant). PI is J. Weese, unpaid TEES collaborator is K.T.

Hartwig, 7/23/04-4/22/04, $29,700.

41. “Fabrication of Amorphous Metal Matrix Composites by Powder Consolidation,” NSF,

TEES 32525-21790, K.T. Hartwig (PI), I. Karaman (Co-PI), 7/01/04-6/30/07, $300,000.

42. “Acquisition of a State-of-the-Art X-Ray Diffraction System for Magneto-Thermo-

Mechanical Materials Characterization Research and Education,” NSF, TEES 32525-22310, I.

Karaman (PI), K.T. Hartwig (Co-PI), J. McIntyre (Co-PI), D. Lagoudas (Co-PI),

Instrumentation Grant, 8/1/04-7/31/05, $252,000.

43. “ECAE Processing of Alloys,” G.E. Global Research (Schenectady, New York), TEES

32525-21880, K.T. Hartwig (PI), 4/01/04-8/31/05, $40,000.


44. “ECAE Processing: Refinement of the Matrix Grain Size,” G.E. Global Research

(Schenectady, New York), TEES 32525-1890, K.T. Hartwig (PI), 5/01/04-12/31/04, $12,000.

45. “Testing: ECAE Processing of Composite Materials,” Global Research and Development

(Troy, Ohio), TEES 32525-22330, K.T. Hartwig (PI), 8/01/04-5/31/05, $10,000.

46. “ECAE Processing of Cu and Ta for Superconductor Diffusion Barriers,” Shear Form

(College Station, Texas), TEES 32525-23220, J. Weese (PI), 8/01/04-4/1/05, $18,947.

47. “Testing: ECAE of Ti-Based Glassy Powder,” Johns Hopkins University, K.T. Hartwig (PI),

TEES 32500-31770, K.T. Hartwig (PI), 7/15/04-9/15/04, $3,000.

48. “Development of Nanostructured Materials with Improved Radiation Tolerance for Advanced

Nuclear Systems,” DOE, TEES Proposal 04-0801, X.H. Zhang (PI), K.T. Hartwig (Co-PI), (to

be awarded in 2005), 4/15/05-5/31/08, $575,189.

49. “Processing Tungsten by ECAE,” US Army Research Laboratory, K.T. Hartwig (PI), 9/29/06-

1/31/08, $44,000.

50. “A Preliminary Investigation of the ECAE Processing of Pure Tungsten Add On,” US Army

Research Laboratory, K.T. Hartwig (Co-PI), T. Creasy (Co-PI) and H.J. Sue (Co-PI), 6/19/07-

1/31/08, additional $24,000.

51. “Microstructural Design and Refinement of Magnesium Alloys for Army Applications”,

Army Research Laboratory (ARL), $70,000, 09/01/08 to 08/ 31/09, K.T. Hartwig (co-PI)

and I. Karaman (co-PI).

52. “Microstructural stability and plastic flow behavior of nanocrystalline copper doped with

antimony”, unfunded, 01/24/08 – 08/31/09, A. Saxena (PI UARK) , D. Spearot (Co-PI

UARK), and K.T. Hartwig (Collaborator).

53. “Dense-particulate consolidation to nanocrystalline bulk material”, ARDEC, K.T. Hartwig

(PI) and I. Karaman (Co-PI), 9/1/09 to 8/31/12, $492,428.

54. “Bulk nanocrystalline fcc steels with enhanced radiation tolerance”, Battelle Energy

Alliance, X.H. Zhang (PI) and K.T. Hartwig (Co-PI), 1/10/09 to 9/30/12, $633,830.


55. “Microstructural design and refinement of magnesium alloys by severe plastic deformation”,

Army Research Laboratory, K.T. Hartwig (PI) and I. Karaman (Co-PI), 4/1/10 to 12/31/10,

$150,000.

56. “Manufacture of fine-grained Nb bar”, DOE SBIR Phase II Grant, R.E. Barber (PI with Shear

Form, Inc. (SFI)) and K.T. Hartwig (staff with Shear Form, Inc.), 4/17/09, $649,969. A

$30,000 subcontract to TEES was funded with R.B. Griffin as the TEES PI. SFI is a

TAMUS spin off small business created to commercialize severe plastic deformation

materials processing technology using intellectual property owned by TAMUS and licensed

exclusively to SFI.

57. “Cooperative Agreement - Advanced lightweight and high density materials development”,

Army Research Laboratory (ARL), K.T. Hartwig (PI), and I. Karaman (Co-PI), 04/01/2011

– 03/31/2014, $520,755.

58. “WHA processing by severe plastic deformation methods”, Aerojet Ordnance Tennessee,

K. T. Hartwig (PI), 09/26/2011 – 06/30/2012, $49,159.

59. “Dense-particulate consolidation to nanocrystalline bulk material - MOD P0004”, ARDEC,

K.T. Hartwig (PI), 04/16/2012 to 08/31/13, $131,597.

60. “Polymer processing”, Army Research Laboratory, K.T. Hartwig (PI), 5/01/11 – 4/30/12,

$10,000.

61. “Collaborative Research: Understanding machining-induced influences to ultra-fine grained

pure titanium for biomedical applications”, NSF-CMMI, K.T. Hartwig (PI), 06/01/14-

05/31/17, $80,000.

62. “Severe plastic deformation of aluminum alloy”, Schlumberger, K.T. Hartwig PI,

01/01/2016 – 12/31/2018, $270,000.

63. “Bio absorbable magnesium alloys for medical applications”, Qatar Research Foundation

(National Priority Research Program), K.T. Hartwig Co-PI with I. Karaman (Co-PI) and B.

Mansoor (PI), 02/01/2016 – 01/31/2018, ~$300,000 for KTH and IK.

Research Contracts and Grants (Texas Sponsors):

1. “Subambient Workhardening Studies on Aluminum for Cryoconductors,” Texas A&M

University - Center for Energy and Mineral Resources, K.T. Hartwig (PI), 9/19/87 - 8/15/88,

$15,100.

2. “Engineering Excellence Grant,” Texas A&M University, K.T. Hartwig (PI), 1/87 - 8/87,

$5,000.


3. “Texas Engineering Experiment Station Fellow Award,” Texas A&M University, K.T.

Hartwig (PI), 10/87 - 8/88, $5,000.


Hartwig (PI), 10/88 - 8/89, $5,000.


Hartwig (PI), 10/89 - 9/90, $5,000.

6. “Request for Funds to Help Establish ECAE at TAMU,” TAMU-TEES (K. Hall), K.T.

Hartwig (Co-PI) and R.E. Goforth (Co-PI), approximately 11/1/92 - 6/30/93, $15,400.

7. “Request for Funds to Help Establish ECAE at TAMU,” TAMU-OUR, K.T. Hartwig (Co-PI)

and R.E. Goforth (Co-PI), approximately 1/93 - 6/30/93, $5,000.

8. “Request for Funds to Help Establish ECAE at TAMU,” TAMU-IE-IMS (J. Wysk), K.T.

Hartwig (Co-PI) and R.E. Goforth (Co-PI), approximately 1/93 - 12/31/93, $12,000.

9. “Equipment for ECAE,” TAMU-ME (1992 ME Dept. Equipment Grant), K.T. Hartwig (Co-

PI) and R.E. Goforth (Co-PI), 1/1/93 - 12/31/93, $15,000.

10. “Request for Funds to Help Establish ECAE at TAMU,” TAMU-TEES (K. Hall), K.T.

Hartwig (Co-PI) and R.E. Goforth (Co-PI), approximately 1/1/93 - 6/30/94, $15,000.

11. “Applications of Equal Channel Angular Extrusion (ECAE) for Advanced Materials,” Texas

Higher Education Coordinating Board-ATP-Research, R.E. Goforth (PI) and K.T. Hartwig

(Co-PI), 1/1/94 - 8/31/96, $257,692.

12. “Scale-up of Equal Channel Angular Extrusion,” Texas Higher Education Coordinating Board

- TDTP, R.E. Goforth (PI) and K.T. Hartwig (Co-PI), 1/1/96 - 12/31/97, $180,941.

13. “The Use of ECAE to Process Alloys and Produce Superior Properties,” Texas Higher

Education Coordinating Board - TATP, L.R. Cornwell (PI) and K.T. Hartwig (Co-PI), 1/1/96

- 12/31/97, $151,276.

14. “Equipment Grant,” TAMU ME Dept., K.T. Hartwig (PI), 12/1/96 - 6/30/97, $2,500.

15. “Application of Mechanical Alloying and Bulk Shear Processing to Produce Superior Quality

Oil Field Tool Products,” Texas Higher Education Coordinating Board-TARP, K.T. Hartwig

(PI), 1/1/98 - 12/31/99, $103,554).

16. “Manufacture of Improved Thermoelectric Materials,” Texas Higher Education Coordinating

Board - TD&T, K.T. Hartwig (PI), 1/1/02-12/31/03, $148,833.

17. “Supplemental High School Teachers Grant Application – Summer 2003,” Texas Higher

Education Coordinating Board, K.T. Hartwig (PI), 6/1/03-8/1/03, $8,100.


18. “Supplemental High School Teachers Grant Application – Summer 2004,” Texas Higher

Education Coordinating Board, K.T. Hartwig (PI), 6/1/03-8/1/03, $8,100.

Invited Presentations (since 1988)

1. Hartwig, K.T., “Pure Aluminum Sources Survey,” Special Meeting of the Research

Association of Superconducting Magnetic Energy Storage, Tokyo, Japan, May 27, 1988.

2. Hartwig, K.T., “Strength and Resistivity Changes Caused by Cyclic Strain at 4.2K in Pure

Aluminum,” Special Meeting of the Research Association of Superconducting Magnetic

Energy Storage, Tokyo, Japan, May 27, 1988.

3. Hartwig, K.T., “A Graphical Model of Cyclic Plastic Strain in Pure Aluminum,” Special

Meeting of the Research Association of Superconducting Magnetic Energy Storage, Tokyo,

Japan, May 27, 1988.

4. Hartwig, K.T., “Strength and Resistivity Changes Caused by Cyclic Strain at 4.2K in Pure

Aluminum,” Baoji Institute for Nonferrous Metal Research, Baoji, China, June 4, 1988.

5. Hartwig, K.T., “A Graphical Model of Cyclic Plastic Strain in Pure Aluminum,” Baoji

Institute for Nonferrous Metal Research, Baoji, China, June 4, 1988.

6. Hartwig, K.T., “Conductor Materials,” EPRI Electrical Energy Storage Innovative Think

Tank Meeting, Palo Alto, California, June 14-15, 1988.

7. Hartwig, K.T., “Strain Effects at 20K in Pulsed Power Coils,” Foster-Miller, Inc., Waltham,

Massachusetts, July 17, 1989.

8. Hartwig, K.T., “Analytical and Experimental Research in the Low Temperature Materials

Laboratory,” Aerospace Systems Division of Ball Aerospace Co., Boulder, Colorado,

September 2, 1989.

9. Hartwig, K.T., “The Electrical Resistivity of Metals and Alloys at Low Temperatures-

Experiences and Current Activities,” R&D Alloy Development Section of Brush-Wellman,

Inc., Cleveland, Ohio, December 1, 1989.

10. Hartwig, K.T., Panel Chairman, “Round Table Discussion-Superconducting Technologies

Commercialization,” Second World Congress on Superconductivity, Houston, Texas,

September 10, 1990.

11. Hartwig, K.T., “Report of the National Commission on Superconductivity,” Second World

Congress on Superconductivity, Press Conference, Houston, Texas, September 11, 1990.


12. Hartwig, K.T., “Super-Cold Aluminum Conductors,” Interview with Staff Writer for the

Aluminum Development Digest, a twice yearly publication of The Aluminum Association,

Washington, D.C. The associated article appeared in the Winter 1990-1991 issue.

13. Hartwig, K.T., “Pure Al as a Superconductor Stabilizer - Important Properties and

Characteristics,” Third International Toki Conference on Applied Superconductivity for

Fusion Sciences, Toki, Japan, December 3, 1991.

14. Hartwig, K.T., “ECAE: The Method and Experimental Results,” Materials Science Seminar

to students and faculty at the University of Wisconsin, Madison, Wisconsin, September 21,

1995.

15. Hartwig, K.T., “ECAE: The Method and Experimental Results,” Physics colloquium for

students and faculty at Sam Houston State University, Huntsville, Texas, March 28, 1996.

16. Hartwig, K.T., “Equal Channel Angular Extrusion - Conceptually Simple, Profoundly

Different,” Seminar to staff scientists and engineers, Oak Ridge National Laboratory, July 8,

1996.

17. Hartwig, K.T., “A Novel Method of Deformation to Enhance the Properties of Bulk

Materials,” talk at the Naval Surface Weapons Center/National Center for Excellence in

Metal-Working Technology Workshop on “Process and Cost Optimization of Al Stabilized

NbTi Superconducting Wire,” Concurrent Technology Corporation, Johnstown,

Pennsylvania, September 19, 1996.

18. Hartwig, K.T., “Equal Channel Angular Extrusions Applied to the Processing of

Multifilamentary NbTi Superconductors,” TMS Fall Meeting, Cincinnati, Ohio, October 9,

1996. Presentation by Iver Anderson.

19. Hartwig, K.T., “Better Materials Are Just Around the Corner,” Seminar to staff scientists,

engineers and faculty, Magnet Design Division of the National High Magnetic Field

Laboratory and Department of Mechanical Engineering, Florida State University, March 3,

1997.

20. Hartwig, K.T., “ECAE, a Processing Method for Introducing High Strains into Bulk

Materials,” H.C. Starck, Inc., Newton, Massachusetts, September 11, 1997.

21. Hartwig, K.T., “Equal Channel Angular Extrusion: An Innovation in Deformation

Processing,” Seminar to staff scientists, engineers and business management, TOSOH SMD,

Inc., Grove City, Ohio, October 23, 1997.

22. Hartwig, K.T., “Severe Plastic Deformation of Materials by ECAE,” Invited Key Speaker at

NATO Advanced Research Workshop on “Investigations and Applications of Severe Plastic

Deformation,” Moscow, Russia, August 2-7, 1999.


23. K.T. Hartwig, “Severe Plastic Deformation by Equal Channel Angular Extrusion,” Invited

Speaker to Materials Science and Technology Division, Naval Research Laboratory,

Washington, DC (Dr. Khershed P. Cooper, host), January 27, 2000.

24. K.T. Hartwig, “Severe Plastic Deformation by Equal Channel Angular Extrusion,” Invited

Speaker to U.S. Army Research Laboratory, The Rodman Materials Research Laboratory,

Aberdeen Proving Ground, Maryland, (Robert Dowding, host), January 28, 2000.

25. K.T. Hartwig and S. Mathaudhu, “Severe Plastic Deformation of Pure Ta by ECAE -

Overview of Work Accomplished, Results and Future Opportunities,” Invited Presentation to

H.C. Starck (Newton, Massachusetts) management and technical staff, May 17, 2000.

26. K.T. Hartwig, “Severe Plastic Deformation by ECAE.” Invited Speaker to Materials Science

and Engineering Department, University of Illinois - Urbana-Champaign, April 2, 2001.

27. K.T. Hartwig, “Powder Consolidation by ECAE.” Invited Presentation at Fall TMS

Conference, Indianapolis, Indiana, November 7, 2001.

28. K.T. Hartwig, “Grain Refinement in Pure Ta Processed by ECAE.” Invited Presentation at

Winter TMS Meeting, Seattle, Washington, February 17, 2002.

29. K.T. Hartwig, “Progress in Developing a Homogeneous Refined Microstructure in Pure Nb

by Severe Plastic Deformation,” DOE Low-Temperature Superconductor Workshop, Napa,

California, 11/11/03.

30. K.T. Hartwig, “Progress in Developing a Homogeneous Refined Microstructure in Pure Nb

by Severe Plastic Deformation,” DOE Low Temperature Superconductor Workshop, Napa,

California, 11/8-10/04.

*** Invited presentation list needs updating beyond 2004 ***

Publications (Books and Book Chapters):

1. Report of the National Commission on Superconductivity, published by the Office of the

President through the National Critical Materials Council, August 7, 1990.

2. “Low Temperature Materials,” section of “Low Temperature Refrigeration” Chapter (39) of

1998 ASHRAE Handbook on Refrigeration, ASHRAE, Inc. Publishers, Atlanta, Georgia, pp.

39.6-39.9, 1998.

3. Advances in Cryogenic Engineering – Materials, Vol. 44, Proceedings of the International

Cryogenic Materials Conference (ICMC), Portland, Oregon, July 28-August 1, 1997, Plenum

Press, New York City, 1999. K.T. Hartwig is the Technical Editor of structural materials and

physical property papers.



Cryogenic Materials Conference (ICMC), Montreal, Canada, July 12-15, 1999, Plenum Press,

New York City, 2000. K.T. Hartwig is the Technical Editor of structural materials and

physical property papers.


Cryogenic Materials Conference (ICMC), Madison, Wisconsin, July 16-20, 2001, Published

by American Institute of Physics (AIP), New York City, 2002. K.T. Hartwig is the Technical

Editor of structural materials and physical property papers.

Intellectual Property

1. U.S. Patent 5,400,633, “Apparatus and Method for Deformation Processing of Metals,

Ceramics, Plastics and Other Materials.” Inventors: V.M. Segal, R.E. Goforth, and K.T.

Hartwig. Assignee: Texas A&M University, College Station, Texas, USA. Application

116,721 filed September 3, 1993 and issued March 28, 1995. This patent describes a tooling

concept for equal channel angular extrusion processing.

2. U.S. Patent 5,573,861, “High Purity Aluminum Conductor Used at Ultra Low Temperature.”

Inventors: A. Takahashi, H. Yasuda, K.T. Hartwig, L.C. McDonald, and H. Zou. Assignees:

Sumitomo Chemical Co., Inc., Osaka, Japan and Texas A&M University, College Station,

Texas, USA. Application 88,032 filed July 6, 1993 and issued November 12, 1996. This

patent deals with texture and crystal orientation.

3. U.S. Patent 5,753,380A, “High Purity Aluminum Conductor Used at Ultra Low

Temperature.” Inventors: A. Takahashi, H. Yasuda, K.T. Hartwig, L.C. McDonald, and H.

Zou. Assignees: Sumitomo Chemical Co., Inc., Osaka, Japan and Texas A&M University,

College Station, Texas, USA. Application 88,032 filed July 6, 1993 and issued November

12, 1996. This patent deals with texture and crystal orientation.

4. U.S. Patent 5,616,191, “Method for Making A High Purity Aluminum Conductor Used at

Ultra Low Temperature.” Inventors: A. Takahashi, H. Yasuda, K.T. Hartwig, L.C. McDonald,

and H. Zou. Assignees: Sumitomo Chemical Co. Inc., Osaka, Japan and Texas A&M

University, College Station, Texas, USA. Application 472,490 filed June 7, 1995 and issued

April 1, 1997. This patent describes a manufacturing method for highly textured and single

crystal pure aluminum.

5. U.S. Patent 6,883,359B1, K.T. Hartwig, “Equal Channel Angular Extrusion Method,” patent

application (TLO No. 017575.0712) filed December 20, 2002, (TAMUS 1598), US Patent

6,883,359 issued April 26, 2005.

6. U.S. Patent 6,976,380B1, K.T. Hartwig, S. Leipert, and M. Gibbs, “Developing Texture of a

Material,” Inventors: (TLO No. 017575.05274, TAMU 1472) filed 1/24/03, US Patent

6,976,380 issued December 20, 2005.


7. Patent Application Filed (U.S. and Japan), “High Purity Aluminum Conductor Used at Ultra

Low Temperature,” (joint with A. Takahashi and L.C. McDonald). Application No.

08/086,920 for the United States Letters Patent, filed in March 1993. This invention deals

with micro-alloying.

8. Disclosure of Invention (TAMUS 1078) titled, “Processing Metallic Alloys for Fine Grained

Microstructures via Equal Channel Angular Extrusion,” (joint with R.E. Goforth and V.M.

Segal) filed July 29, 1996.

9. Disclosure of Invention (TAMUS 1079) titled, “Fabrication of In-Situ Composites via Equal

Channel Angular Extrusion,” (joint with R.E. Goforth and V.M. Segal) filed July 29, 1996.

10. Disclosure of Invention (TAMUS 1080) titled, “Joining of Discontinuous Materials Via Equal

Channel Angular Extrusion,” (joint with R.E. Goforth) filed July 19, 1996.

11. Disclosure of Invention (TAMUS 1114) titled, “Method of Introducing Plastic Strain

Into Materials Without a Change in Workpiece Shape or Dimensions,” (joint with R.E.

Goforth) filed October 4, 1996.

12. Disclosure of Invention (TAMUS 1472) titled, “Method of Texture Development in

Bulk Materials,” (joint with S. Leipert) filed May 17, 1999. Provisional Patent Application

filed January 24, 2002.

13. Disclosure of Invention (TAMUS 1598) titled, “System and Method to Produce Uniform

Recrystallized Microstructures,” Provisional Patent Application filed December 20, 2001.

14. Disclosure of Invention (TAMUS 1694) titled, “Nano-Pinned Quantum Magnetic Flux for

High Capacity Computer Memory.” authors, M. Andrews (Mech. Eng.), A. Beskok (Mech.

Eng.), T. Hartwig (Mech. Eng.), W. Kim (Mech. Eng.), J. Ross (Physics), J. Slattery (Aero),

and M. Yavuz (Mech. Eng.), filed November 30, 2000. Patent Application filed January 17,

2002.

15. M.J. Andrews, J.H. Ross, J.C. Slattery, M. Yavuz, A. Beskok, and K.T. Hartwig, “Method

and System for Storing Information Using Nano-Pinned Dipole Magnetic Vortices in

Superconducting Materials,” patent application (TLO File No. 017575.0565) filed January 17,

2002, (TAMUS 1694).

16. K.T. Hartwig, “Equal Channel Angular Extrusion Method,” patent application (TLO No.

017575.0712) filed December 20, 2002, (TAMUS 1598), US Patent 6,883,359 issued April

26, 2005.

17. K.T. Hartwig, S. Leipert, and M. Gibbs, “Developing Texture of a Material,” Inventors: (TLO

No. 017575.05274, TAMU 1472) filed 1/24/03, US Patent 6,976,380 issued December 20,

2005.


18. K.T. Hartwig and R.E. Barber, “Processing of Hollow Sections.” U.S. Serial No.

61/531,674; filed September 7, 2011, TAMUS Invention Disclosure 3412, Associated

DOE Grant Reference Nos.: DE-FG02-07ER84916 and DE-SC0004589.

19. K.T. Hartwig and R.E. Barber, “Processing of Hollow Sections.” U.S. Serial

No.13/606,473; filed September 7, 2012; TAMUS Invention Disclosure 3412,

Associated DOE Grant Reference Nos.: DE-FG02-07ER84916 and DE-SC0004589.

20. K.T. Hartwig and R.E. Barber, “Processing of Hollow Sections.” EPO Serial No.

12183459.2; filed September 7, 2012; TAMUS Invention Disclosure 3412, Associated

DOE Grant Reference Nos.: DE-FG02-07ER84916 and DE-SC0004589.

21. K.T. Hartwig and R.E. Barber, “Processing of Hollow Sections.” Japanese Serial No. 2012-

196575; filed September 6, 2012; Invention Disclosure 3412, Associated DOE Grant

Reference Nos.: DE-FG02-07ER84916 and DE-SC0004589.

22. R.E. Barber, S. Balachandram, and K.T. Hartwig, “Methods for the Treatment of Fusion

Weld and Heat Affected Zones.” U.S. Serial No. 61/766,049; filed February 18, 2013;

TAMUS 3411 Associated DOE Grant Reference Nos.: DE-FG02-08ER85026 and DE-

SC0004589.

23. R.E. Barber and K.T. Hartwig, “Apparatus for Deformation of Solid Sections.” U.S. Serial

No. 61/637,203; filed April 23, 2012; TAMUS 3582 Associated DOE Grant Reference No.:

DE-FG02-08ER85026.

24. R.E. Barber and K.T. Hartwig, “Apparatus for Deformation of Solid Sections.” U.S. Serial

No. 13/868,898; filed April 23, 2013; TAMUS 3582 Associated DOE Grant Reference No.:

DE-FG02-08ER85026.

Publications - Refereed Journal Articles (students’ names italicized):

1. K. Tachikawa, R.J. Burt, and K.T. Hartwig, “Formation of Superconducting A-15 V3Ge

Compound by a Composite Diffusion Process,” Journal of Applied Physics 48, pp 3623-

3625, 1977.

2. B.C. Haimson, K.T. Hartwig, and T.W. Doe, “Underground Caverns for Energy Storage

Using Superconductive Magnets,” Underground Space 2, pp 137-142, 1978.

3. U. Muzutani, K.T. Hartwig, R.W. Hopper, and T.B. Massalski, “Low Temperature Specific

Heat of Glassy Pd1-x-ySixCuy Alloys,” Physical Review Letters 41, pp 661-664, 1978.

4. K.T. Hartwig and F.J. Worzala, “Resistivity and Strength of Precipitation Hardening Dilute

Al-Au Alloys,” Materials Science and Engineering 48, pp 41-51, 1981.

5. K.T. Hartwig, “An Eddy Current Decay Technique for Low Temperature Resistivity

Measurements,” Eddy-Current Characterization of Materials and Structure, ASTM STP

723, George Birnbaum and George Free, Eds., American Society for Testing and Materials,

pp. 157-172, 1981.


6. P. Lehmann, G.S. Yuan, and K.T. Hartwig, “Grip for Fatigue Testing Pure Aluminum,”

Cryogenics 25, pp 164, 1985.

7. K.T. Hartwig, G.S. Yuan, and P. Lehmann, “The Effects of Low Temperature Fatigue on

the RRR and Strength of Pure Aluminum,” IEEE Trans. on Magnetics, Vol. 21, No. 2, pp

161-164, March 1985.

8. K.T. Hartwig and G.S. Yuan, “Energy Loss, Anisotropy, Magnetoresistivity and Recovery

in Aluminum Strained at 4.2 K,” IEEE Trans. on Magnetics, Vol. MAG-23, No. 2, pp

1409-1412, March 1987.

9. C.Y. Hua and K.T. Hartwig, “Measurements of Electrical Resistivity in High Magnetic

Fields by the Eddy-Current Decay Method,” Cryogenics 29, pp 978-981, 1989.

10. K.T. Hartwig, J.T. Gehan, and G.L. Richards, “Calculations of Plastic Strain and Resistivity

Increase in a Composite Conductor Subjected to Cyclic Strain,” IEEE Trans. Magnetics,

Vol. 25, No. 2, pp 1960-1963, March 1989.

11. G.L. Richards and K.T. Hartwig, “A Simplified Method for Determining the Relaxation

Time and Electrical Resistivity from Eddy-Current Decay Measurements,” J. of Testing and

Evaluation, 18, No. 6, pp 454-457, 1990.

12. L.C. McDonald and K.T. Hartwig, “Cryogenic Creep Testing,” J. of Testing and

Evaluation, Vol. 19, No. 2, pp 107-114, 1991

13. K.T. Hartwig, C.Y. Hua, and L.C. McDonald, “Effect of Primary Coil Size on Eddy Current

Decay Resistivity Measurements,” Cryogenics, 31, pp 153-158, 1991.

14. L.C. McDonald, K.T. Hartwig, and A. Takahashi, “Microalloyed Aluminum for Cryogenic

Conductors,” J. of Metals, Vol. 47, No. 2, pp 41-43, February 1995.

15. K.T. Hartwig, L.C. McDonald, J.D. Harper, and C.Y. Hua, “RRR Measurements on a

SMES-ETM Mockup Superconductor,” IEEE Trans. Applied Superconductivity, Vol. 5,

No. 2, ITASE 9, pp. 307-310, June 1995.

16. S.L. Semiatin, V.M. Segal, R.L. Goetz, R.E. Goforth, and K.T. Hartwig, “Workability of a

Gamma Titanium Aluminide Alloy During Equal Channel Angular Extrusion,” Scripta

Metallurgica et Materialia, Vol. 33, No. 4, pp. 535-540, 1995.

17. C.Y. Hua, L.C. McDonald, and K.T. Hartwig, “Eddy Current Decay Resistivity

Measurements Using a Voltmeter,” ASTM J. of Testing and Evaluation, Vol. 25, No. 1, pp.

41-48, 1997.

18. V.M. Segal, K.T. Hartwig, and R.E. Goforth, “In Situ Composites Processed by Simple

Shear,” J. Materials Science and Engineering A., Vol. 224/1-2, pp. 107-115, (March 1997).

19. L.R. Cornwell, K.T. Hartwig, R.E. Goforth, and S.L. Semiatin, “The Equal Channel

Angular Extrusion Process for Materials Processing,” Materials Characterization, Vol. 37,

No. 5, pp. 295-300, (November 1996).

20. S. Ferrasse, V.M. Segal, K.T. Hartwig, and R.E. Goforth, “Development of a

Submicrometer-Grained Microstructure in Aluminum 6061 Using Equal Channel Angular

Extrusion,” J. Materials Research, Vol. 12, No. 5, pp. 1253-1261 (May 1997)

21. S. Ferrasse, V.M. Segal, K.T. Hartwig, and R.E. Goforth, “Microstructure and Properties of

Copper and Aluminum Alloy 3003 Heavily Worked by Equal Channel Angular Extrusion,”

Metallurgical and Materials Transactions A, Vol. 28A, pp. 1047-1057 (April 1997)

22. A. Takahashi, L.C. McDonald, H. Yasuda, and K.T. Hartwig, “Microalloy and High Purity

Aluminum for Low Temperature Conductor Applications,” Physica Status Solidi (a) Vol.

160, No. 2, pp. 413-418 (1997).


23. M.W. Gillenwater, K.T. Hartwig, and C.Y. Hua, “Eddy Current Decay Time Constant

Measurements and Resistivity Determination on Longitudinally Grooved Pure Aluminum

Bars,” ASTM Journal of Testing and Evaluation, Vol. 26, No. 4, pp. 320-328 (July 1998).

24. H.J. Cui, R.E. Goforth, and K.T. Hartwig, “The Three-Dimensional Simulation of Flow

Pattern in Equal Channel Angular Extrusion,” Journal of Metals-Electronic, Vol. 50, No. 8,

(4 pages) (August 1998).

25. M.A. Gibbs, K.T. Hartwig, L.R. Cornwell, R.E. Goforth, and A. Payzant, “Texture

Formation in Bulk Iron Processed by Simple Shear,” Scripta Materialia, Vol. 39, No. 12,

pp. 1699-1704, 1998.

26. A. Parasiris, K.T. Hartwig, and M.N. Srinivasan, “Formation/Consolidation of WC-Co

Cermets by Simple Shear,” Scripta Materialia, Vol. 42, pp. 875-880, 2000.

27. A. Parasiris and K.T. Hartwig, “Consolidation of Advanced WC-Co Powders,”

International Journal of Refractory Metals and Hard Materials, 18, pp 23-31, 2000.

28. M. Yavuz, A. Enrekin, T. O’Brien, R. Soika, P.M. McIntyre, K.D.D. Rathnayaka, D.

Naugle, and K.T. Hartwig, “Solid Solubility Limit of Bi-Pb-Sr-Ca-Mn-O in Bi-Pb-Sr-Ca-

Cu-O Superconductor,” IEEE Transactions on Applied Superconductivity, Vol. 11, No. 1,

pp. 3446-3448, March 2001.

29. R.D. Field, K.T. Hartwig, C.T. Necker, J.F. Bingert and S.R. Agnew, “Equal Channel

Angular Extrusion of Beryllium,” Metallurgical and Materials Transactions A, Vol. 33A,

pp. 965-972, 2002.

30. H.G. Salem, R.E. Goforth, and K.T. Hartwig, “Influence of Intense Plastic Straining on

Grain Refinement, Precipitation, and Mechanical Properties of Al-Cu-Li-Based Alloys,”

Metallurgical and Materials Transactions A, Vol. 34A, 1153-1161, 2003.

31. J. Robertson, J.-T. Im, I. Karaman, K.T. Hartwig, and I. Anderson, “Consolidation of

Amorphous Copper Based Powder by Equal Channel Angular Extrusion,” Journal of Non-

Crystalline Solids, Vol. 317, pp. 144-151, 2003.

32. K.T. Hartwig, G. Chase, and J. Belan, “Novel Particulate Reinforced Tin for Tubular

Nb3Sn Multifilamentary Superconductors,” IEEE Transactions on Applied

Superconductivity, Vol. 13, No. 2, pp. 3548-3552, 2003.

33. I. Karaman, J. Robertson, J.-T. Im, S. Mathaudhu, Z.P. Luo, and K.T. Hartwig, “The

Effect of Temperature and Extrusion Speed on the Consolidation of Zirconium Based

Metallic Glass Powder Using Equal Channel Angular Extrusion,” Metallurgical and

Materials Transactions A, Vol. 35A, pp. 247-256, 2004.

34. Z.Y. Xia, K.T. Hartwig, and H.J. Sue, “Mechanical Behavior of Bulk Polyethylene

terephthalate Subjected to Single Shear,” Macromolecular Sciences Part B – Physics, Vol.

B43, No. 2, pp. 385-403, 2004.

35. Q. Wei, T. Jiao, S.N. Mathaudhu, E. Ma, K.T. Hartwig, and K.T. Ramesh, “Microstructure

and Mechanical Properties of Tantalum After Equal Channel Angular Extrusion (ECAE),”

Materials Science and Engineering A, A358, pp. 266-273, 2003.

36. Jae-Taek Im, K. Ted Hartwig and Jeff Sharp, “Microstructural Refinement of Cast P-

Type Bi2Te3-Sb2Te3 by Equal Channel Angular Extrusion,” Acta Materialia, Vol. 52, pp.

49-55, 2004.

37. Q. Wei, L. Kecskes, T. Jiao, K.T. Hartwig, K.T. Ramesh and E. Ma, “Adiabatic Shear

Banding in Ultrafine-Grained Fe Processed by Severe Plastic Deformation,” Acta

Materiala, Vol. 52, No. 7, pp. 1859-1869, 2004.


38. Haouaoui, M., Karaman, I., Maier, H. and Hartwig, K.T., “Microstructure Evolution and

Mechanical Behavior of Bulk Copper Obtained by Consolidation of Micro and Nano

Powders,” Metallurgical and Materials Transactions A, Vol. 35A, pp. 2935-2949, 2004.

39. R.E. Barber, T. Dudo, P.B. Yaskin and K.T. Hartwig. “Product Yield for ECAE

Processing,” Scripta Materialia, Vol. 51, pp. 373-377, 2004.

40. M. Haouaoui, K.T. Hartwig and A. Payzant, “Effect of strain path on texture and the

annealing microstructure development in bulk pure copper processed by simple shear”,

Acta Materialia, accepted for publication, 2005.

41. S. Mathaudhu,, S. Blum, R.E. Barber and K.T. Hartwig, “Severe plastic deformation of

bulk Nb for Nb3Sn superconductors,” IEEE Transactions on Applied Superconductivity,

Vol. 15, pp. 3438-3441, 2005.

42. S. Mathaudhu,, R.E. Barber, and K.T. Hartwig, “Microstructural refinement of bulk

Tantalum for Nb3Sn superconductor diffusion barriers,” IEEE Transactions on Applied

Superconductivity, Vol. 15, pp. 3434-3473, 2005.

43. S.T. Kadri, and K.T. Hartwig, “Recrystallized grain size in severely deformed pure

copper,” Materials Science Forum, Vol. 503-504, pp. 349-354, 2006.

44. S.N. Mathaudhu and K.T. Hartwig, “Grain refinement and recrystallization of heavily

worked tantalum,” Materials Science and Engineering A, Vol. 426, pp. 128-142, 2006.

45. L. Kecskes, D. Gardiner, R. Woodman, R.E. Barber and K.T. Hartwig, “Severe plastic

deformation of nickel coated aluminum precursor powder at elevated temperatures,”

Metallurgical and Materials Transactions, A37 [2], pp. 449-457, 2006.

46. M. Morehead, H. Yuang and K.T. Hartwig, “Machinability of ultrafine-grained copper

using tungsten carbide and polycrystalline diamond tools,” International Journal of

Machine Tools and Manufacture Design Research and Application, 47, pp. 286-293,

2007.

47. S.N. Mathaudhu and K.T. Hartwig, “Processing/microstructure/property relationships in

severely deformed tantalum,” Materials Science and Engineering A, Vol. 463, pp. 94-

100. 2007.

48. S.N. Mathaudhu, K.T. Hartwig and I. Karaman, “Consolidation of blended powders by

severe plastic deformation to form amorphous metal matrix composite,” Journal of Non-

Crystalline Solids, Vol. 353, pp. 185-193, 2007.

49. D. Baars, T.R. Bieler, K.T. Hartwig, H. Jiang, C. Compton and T.L. Grimm, “Processing

strategies for RRR niobium sheet used for the superconducting radio frequency cavities of

colliders,” Journal of Metals, Vol., pp. 50-55, 2007.

50. K.T. Hartwig, J. Wang, D.C. Baars, T.R. Bieler, S.N. Mathaudhu and R.E. Barber,

“Microstructural refinement of niobium for superconducting radio frequency cavities,”

IEEE Transactions on Applied Superconductivity, pp xxx-xxx, 2007.

51. S.N. Mathaudhu, K.T. Hartwig and R.E. Barber, “Fine-grained tantalum for composite

Nb3Sn superconductor diffusion barrier sheet,” IEEE Transactions on Applied

Superconductivity, pp xxx-xxx, 2007.

52. J.W. Sharp, J.T. Im and K.T. Hartwig, “Processing of Bi90Sb10 by equal channel angular

extrusion”, Journal of Thermoelectricity, No 4, pp 53-58, 2007.

53. I.J. Beyerlein, R.D. Field, K.T. Hartwig, and C.T. Necker, “Texture development in two-

pass ECAE-processed beryllium”, Journal of Materials Science, Vol. 43, Issue 23, pp

7465-7473, 2008.


54. Q. Wei, B.S. Schuster, K.T. Hartwig, L.K. Kecskes, R.J. Dowding and K.T. Ramesh,

“Dynamic behavior of some body-centered cubic metals with ultrafine grain and

nanocrystalline microstructures”, Materials Science and Engineering A, Vol. 493, pp 58-

64, 2008.

55. Q. Wei, K.T. Ramesh, L.J. Kecskes, S.N. Mathaudhu, and K.T. Hartwig, “Ultrafine and

nanostructured refractory metal processed by SPD: microstructure and mechanical

properties”, Materials Science Forum, Vol 579, pp 75-90, 2008.

56. D.C. Foley, R.E. Barber, J.T. Im, B. Onipede, and K.T. Hartwig, Evaluation of reshaping

methods for multipass equal channel angular extrusion”, Materials Science Forum, Vols.

584-586, pp 63-67, 2008.

57. M. Cox, S.N. Mathaudhu, K.T. Hartwig and D. Dunand, “Amorphous Zr-based foams

with aligned, elongated pores”, published on line 11/24/09, Metallurgical and Materials

Transactions A, pp 14-22, 2008.

58. D.C. Foley, K.T. Hartwig, S.A. Maloy, P. Hosemann, and X.H. Zhang, “Grain refinement

on T91 alloy by equal channel angular pressing”, Journal of Nuclear Materials 389, pp

221-224, 2009.

59. S.N. Mathaudhu, A.J. deRosset, K.T. Hartwig and L.J. Kecskes, “Microstructures and

recrystallization behavior of severely hot-deformed tungsten, Materials Science and

Engineering: A, Vol. 503, pp. 28-31, 2009.

60. S. Balachandran, K.T. Hartwig, D.C. Baars, S.N. Mathaudhu, T.R. Bieler, T. Pyon and

R.E. Barber, “Fabrication of tantalum sheet for superconductor diffusion barriers”, IEEE

Transactions on Applied Superconductivity, Vol 19 No 3, pp 2606-2609, 2009.

61. R.A. Renzetti, M.J.R. Sandim, H.R.Z. Sandim, K.T. Hartwig, H.H. Bernardi, and D. Raab,

“EBSD characterization of pure iron deformed by ECAE”, Materials Science Forum 638-

642, pp 995-2000, 2010.

62. Rajgarhia, R.K., Saxena, A., Spearot, D.E., Hartwig, K. T., More, K.L., Kenik, E.A.,

Meyer, H., “Microstructural stability of copper with antimony dopants at grain

boundaries: experiments and molecular dynamics simulations”, Journal of Materials

Science 45:6707-6718, 2010.

63. Cox, M.E., Mathaudhu, S.N., Hartwig, K.T., Dunand, D.C., “Amorphous Zr-based foams

with aligned, elongated pores”, Metallurgical and Materials Transactions A, 41A, 1706-

1713, 2010.

64. Bieler, T.R., N.T. Wright, F. Pourboghrat, C. Compton, K.T. Hartwig, D. Barrs, A.

Zamiri, S. Chandrasekaran, P. Darbandi, H. Jiang, E. Skoug, S. Balachandran, G.E. Ice,

and W. Liu, “Physical and mechanical metallurgy of high purity Nb for accelerator

cavities”, Physical Review Special Topics, Vol. 13, (031002 pp 1-13), 2010.

65. Foley, D.C., Al-Maharbi, M., Hartwig, K.T., Karaman, I., Kecskes, L.J., and Mathaudhu,

S.N., “Grain Refinement vs. Crystallographic Texture: Mechanical Anisotropy in a

Magnesium Alloy”, Scripta Materialia, Vol. 64, pp. 193-196, 2011.

66. Al-Maharbi, M., Karaman, I. Beyerlein, I.J., Foley, D., Hartwig, K.T., Kecskes, L.J. and

Mathaudhu, S.N., “Microstructure, Crystallographic Texture, and Plastic Anisotropy

Evolution in a Mg Alloy during Equal Channel Angular Extrusion Processing,” Materials

Science and Engineering A, pp7616-7627, 2011.


67. K.T. Hartwig, S. Balachandran, R.E. Barber, T. Pyon, and R.B. Griffin, “Design aspects

of dual Nb-Ta Sheet diffusion barriers for Nb3Sn Conductors”, IEEE Transactions on

Applied Superconductivity, Vol. 21, No. 3 pp 2563-2566, June, 2011.

68. S. Balachandran, R.E. Barber, Y. Huang, H. Miao, J.A. Parrell, R.B. Griffin, and K.T.

Hartwig, “Influences of different ECAE routes on filament deformation in Cu clad Nb

composite wires”, IEEE Transactions on Applied Superconductivity, pp 2584-2587, 2011.

69. Viswanathan, S., Saha, P., Foley, D.C., and Hartwig, K.T., “Developing an improved

zirconium grain refiner for magnesium”, “Engineering a More Efficient Zirconium Grain

Refiner for Magnesium”, Magnesium Technology, pp 559-564, 2011.

70. C. Sun, K. Y. Yu, J. H. Lee, Y. Liu, H. Wang, L. Shao, S. A. Maloy, K.T. Hartwig and X.

Zhang, “Enhanced radiation tolerance of ultrafine grained Fe-Cr-Ni alloy”, J. Nuclear

Materials, 420, 235-240, 2012.

71. C. Sun, Y. Yang, Y. Liu, K.T. Hartwig, H. Wang, S. A. Maloy, T.R. Allen, X. Zhang ,

Thermal stability of ultrafine grained Fe-Cr-Ni alloy, Materials Science and Engineering

A, 542, pp. 64-70, 2012.

72. S.M. Razavi, D.C. Foley, I. Karaman, K.T. Hartwig, O. Duygulu, L. Kecskes, S. N.

Mathaudhu, and V. H. Hammond, “Effect of grain size on prismatic slip in AZ31

magnesium alloy”, Scripta Materialia, 67, pp. 439-442, 2012.

73. Z. Pan, F. Xu, S.N. Mathaudhu, L.J. Kecskes, W.H. Yin, Y.Z. Guo, X.Y. Zhang, K.T.

Hartwig, and Q. Wei, “Microstructure evolution and mechanical properties of niobium

processed by equal channel angular extrusion”, Acta Materialia, Vol. 60, pp. 2310-2323,

2012.

74. S. Balachandran, R.C. Elwell, D. Kang, R.E. Barber, T.R. Bieler, and K.T. Hartwig “Nb

tubes for seamless SRF cavities,” IEEE Transactions on Applied Superconductivity,

Vol 23, No 3, article # 7100904, pp xxx-xxx, June 2013.

75. M. Song, C. Sun, J. Jang, C.H. Han, T.K. Kim, K.T. Hartwig and X. Zhang,

“Microstructure refinement and strengthening mechanisms of a 12Cr ODS steel

processed by ECAE,” Journal of Alloys and Compounds, Vol. 577, pp. 247-256, 2013.

76. M. Song, R. Zhu, D.C. Foley, C. Sun, K.T. Hartwig, and X. Zhang, “Enhancement of

strength and ductility in ultrafine-grained T91 steel through thermomechanical

treatments,” Journal of Materials Science, Vol. 48, pp. 7360-7373, 2013.

77. C. Sun, D.W. Brown, B. Clausen, D.C. Foley, K.Y. Yu, Y. Chen, S.A. Maloy, K.T.

Hartwig, H. Wang, X. Zhang, “In situ neutron diffraction study on temperature dependent

deformation mechanisms of ultrafine grained austenitic Fe–14Cr–16Ni alloy,”

International Journal of Plasticity Vol 53, pp 125-134, Feb 2014.

78. C. Sun, J. Ma, Y. Yang, K.T. Hartwig, S.A. Maloy, H. Wang, and X. Zhang,

“Temperature and grain size dependent plasticity instability and strain rate sensitivity or

ultrafine grained austenitic Fe-14Cr-16Ni alloy, accepted “Materials Science and

Engineering A, Vol xxx, pp xxx-xxx, 2014.

79. Liping Denga,b, Ke Hanb, Karl T. Hartwigc, Theo M. Siegristb, Lianyang Dongb, Zeyuan

Suna, Xiaofang Yanga, Qing Liua , “Hardness, electrical resistivity, and modeling of in-

situ Cu-Nb microcomposites” , Journal of Alloys and Compounds, Vol 602, pp 331-338,

2014.

80. M. Song, Y. D.Wu, D. Chen, X. M. Wang, C. Sun, K.Y. Yu, Y. Chen, L. Shao, Y. Yang, K.

T. Hartwig, and X. Zhang, “Response of ECAE processed ultrafine grained T91 steel


subjected to high temperature heavy ion irradiation”, Acta Materialia, 74, pp 285-295,

2014.

81. H.R.Z. Sandim, R.E. Bolmaro, R.A. Renzetti, M.J.R. Sandim, K.T. Hartwig, S.C. Vogel,

and D. Raabe, “Texture evolution as determined by in-situ neutron diffraction during

annealing of iron deformed by equal channel angular pressing”, Metallurgical and

Materials Transactions A, 45A, pp 4235-4246, 2014.

82. 4. Sun, C., Zheng, S., Wei, C.C., Wu, Y., Shao, L., Yang, Y., Hartwig, K.T., Maloy, S.A.,

Zinkle, S.J., Allen, T.R., Wang, H., and Zhang, X., “Superior radiation-resistant

nanoengineered austenitic 304L stainless steel for applications in extreme radiation

environments”, Scientific Reports, 5:7801, SREP-14-05853.3d, 7 pages, published

15January2015.

83. Z. Levin and K.T. Hartwig, “Hardness and microstructure of tungsten heavy alloy

subjected to severe plastic deformation and post processing heat treatment”, Materials

Science and Engineering A, pp xxx-xxx, accepted and to be published in 2015.

84. Balachandran, S., Bieler, T.R., Foley, D.C., Barber, R.E., and Hartwig, K.T., “Fine grain

seamless Nb tube for SRF cavities – microstructure options”, IEEE Transactions on

Applied Superconductivity, pp xxxx-xxxx, under review by IEEE Transactions on

Applied Superconductivity, 2015.

Manuscripts Under Preparation or Review

1. D.C. Foley, D. Brown, M. Al-Maharbi, I. Karaman, H.J. Maier, S.N. Mathaudhu, L.J.

Kecskes, K. T. Hartwig, “Grain Size Effects on Deformation and Mechanical Properties

of a Magnesium Alloy”, under internal review, pp xxx-xxx, 2015.

2. Bryant, D.O., Luo, Z.P., and Hartwig, K.T., “Uniform grain refinement of coarse-

grained niobium via severe plastic deformation”, to be submitted to Acta Materialia,

April 2015.

3. Z.S. Levin, X. Wang, M. Kaynak, I. Karaman, and K.T. Hartwig, “Nanostructured bulk

tantalum via equal channel angular extrusion powder consolidation”, under internal

review, to be submitted to Acta Materialia in May, 2015.

Publications (Advances in Cryogenic Engineering), Proceedings of the Cryogenic

Engineering, and International Cryogenic Materials Conference held every two years; a

refereed, bound archival series begun in 1954 and published by Plenum Press), students’

names italicized:

1. K.T. Hartwig, F.J. Worzala and M.E. Jackson, “The Electrical and Mechanical Behavior of

Selected Dilute Al-Au Alloys at 300 K, 77 K and 4.2 K,” Adv. Cryo. Engr., Vol. 22, pp. 472-

476 (1976).

2. K.T. Hartwig and A.A. Saffari-Kermani, “Characterization of Several Alloys for Moderate

Strength - High Conductivity Application,” Adv. Cryo. Engr., Vol. 26, p. 621 (1980).


3. S.W. Van Sciver and K.T. Hartwig, “Boundary Resistance in Aluminum Stabilized

Conductors,” Adv. Cryo. Engr., Vol. 26, pp. 499-504 (1980).

4. K.T. Hartwig, “Fabrication Studies of a Strengthened Aluminum-NbTi Composite

Conductor,” Adv. Cryo. Engr., Vol. 26, pp. 494-498 (1980).

5. K.T. Hartwig, P. Zolliker and D. Yu, “Fabrication and Performance of an Aluminum

Stabilized Composite Superconductor,” Adv. Cryo. Engr., Vol. 28, pp. 805-812 (1982).

6. K.T. Hartwig, G.S. Yuan and P. Lehmann, “Strain Resistivity at 4.2 K in Pure Aluminum,”

Adv. Cryo. Engr., Vol. 32, pp. 405-412 (1986).

7. G.S. Yuan, P. Lehmann and K.T. Hartwig, “The Effects of Prestrain on Low Temperature

Fatigue Induced Resistivity in Pure Aluminum,” Adv. Cryo. Engr., Vol. 32, pp. 413-419

(1986).

8. A. Lumbis, J. Roelli, D. Frutschi, J.T. Gehan and K.T. Hartwig, “Cryoconductor Materials

Testing System,” Adv. Cryo. Engr., Vol. 36A, pp. 701-708 (1990).

9. K.T. Hartwig and R.J. DeFrese, “Mechanical and Electrical Testing of Aluminum

Cryoconductors,” Adv. Cryo. Engr., Vol. 36A, pp. 709-715 (1990).

10. J.T. Gehan and K.T. Hartwig, “Total Plastic Strain and Electrical Resistivity in High Purity

Aluminum Cyclically Strained at 4.2 K,” Adv. Cryo. Engr., Vol. 36A, pp. 717-723 (1990).

11. K.T. Hartwig, A. Lumbis and J. Roelli, “Cyclic Strain Resistivity in Pure Aluminum at 20 K,”

Adv. Cryo. Engr., Vol. 36A, pp. 725-732 (1990).

12. L.C. McDonald and K.T. Hartwig, “Creep of Pure Aluminum at Cryogenic Temperatures,”

Adv. Cryo. Engr., Vol. 36A, pp. 1135-1141 (1990). This paper won a “Best Paper” Award

at the 1989 International Cryogenic Materials Conference.

13. L.C. McDonald and K.T. Hartwig, “1100 Hour Creep Test Results for OFHC Copper:

Validation of Previously Published Results,” Adv. Cryo. Engr., Vol. 38A pp. 127-132 (1992).

14. K.T. Hartwig, L.C. McDonald and H. Zou, “Recent Developments With the Eddy Current

Decay Method for Resistivity Measurements,” Adv. Cryo. Engr., Vol. 38B pp. 1169-1175

(1992).

15. K.T. Hartwig and H. Zou, “Residual Resistivity Measurements on High RRR Aluminum by

the Eddy Current Decay Method,” Adv. Cryo. Engr., Vol. 40, pp. 443-450 (1994).

16. H.C. Hua, J.D. Harper and K.T. Hartwig, “Resistivity and RRR Measurements on Grooved

SMES Aluminum Stabilizer Bar by the Eddy Current Decay Method,” Adv. Cryo. Engr., Vol.

40, pp. 669-675 (1994).


17. P.C. Sundby and K.T. Hartwig, “Annealing Study on Aluminum Composite Cryoconductors,”

Adv. Cryo. Engr., Vol. 40, pp. 685-691 (1994).

18. L.C. McDonald and K.T. Hartwig, “Electrical and Mechanical Behavior of Micro-Alloyed

Aluminum (RRR > 2500) at 4.2K,” Adv. Cryo. Engr., Vol. 40, pp. 693-700 (1994).

19. L.C. McDonald and K.T. Hartwig, “Eddy Current Determination of the Effects of Cyclic

Strain and Temperature on the Magnetoresistivity of Pure Aluminum,” Adv. Cryo. Engr., Vol.

40, pp. 701-708 (1994). This paper won a “Meritorious Paper” Award at the 1993

International Cryogenic Materials Conference.

20. L.C. Watts, K.T. Hartwig, G. Boulios and R.F. Huson, “Support System Design Incorporating

Carbon/Epoxy Tension Straps for a Four Tesla, One Meter Bore, MRI Magnet,” Adv. Cryo.

Engr., Vol. 41, pp. 457-463 (1996).

21. L.C. McDonald, K.T. Hartwig and H. Zou, “Effects of Grain Size and Purity on Low

Temperature Cyclic Strain Degradation of Stabilizer Aluminum,” Adv. Cryo. Engr., Vol. 42,

pp. 1057-1062 (1996).

22. T.S. Edgecumbe-Summers, V.M. Segal, K.T. Hartwig, R.E. Goforth, R.P. Walsh and P.

Pernambuco-Wise, “ECAE Processed Cu-Nb and Cu-Ag Nanocomposite Wires for Pulse

Magnet Applications,” Adv. Cryo. Engr., Vol. 42, pp. 499-505 (1996).

23. Hartwig, K.T., D.O. Bryant, S.N. Mathaudhu, R.E. Barber and J.T. Im, “Grain Refinement of

Niobium by Severe Plastic Deformation,” in Advances in Cryogenic Engineering - Materials,

Proceedings of the Joint Cryogenic Engineering Conference and International Cryogenic

Materials Conference, Vol. 50a, pp. 441-449 (2004).

24. S.N. Mathaudhu, K.T. Hartwig. R.E. Barber, and T. Pyon, “Tantalum Sheet for

Superconductor Diffusion Barrier Applications,” Advances in Cryogenic Engineering –

Materials, Vol. 52B, pp. 590-5,98, 2006.

25. K.T. Hartwig, S. Balachandran, S.N. Mathaudhu, R.E. Barber, T. Pyon and R.B. Griffin,

"Interface roughness in Cu-Ta wire and Nb3Sn superconductor composites”, Advances in

Cryogenic Engineering-Materials, Vol 54: Proceedings of the International Cryogenic

Materials Conference, pp325-332, 2008.

26. S. Balachandran, K.T. Griffin and R.B. Griffin, "A method for measuring Cu-Ta interface

roughness in composite Nb3Sn superconducting wires”, Advances in Cryogenic Engineering -

Materials, Vol. 54: Proceedings of the International Cryogenic Materials Conference, pp 333-

340, 2008.

27. S. Balachandran, K.T. Hartwig, R.E. Barber, Y. Huang, H. Miao, J.A. Parrell, S. Hong, and

R.B. Griffin, “Fine grained Nb for internal tin Nb3Sn conductors, Advances in Cryogenic


Engineering – Materials, Vol 56: Proceedings of the International Cryogenic Materials

Conference, 2009, pp 216-223, 2010.

28. S. Balachandran, N. Seymour, R. Mezyenski, R. Barber, and K.T. Hartwig, “Microstructure

and mechanical properties of fine grained seamless Nb tube by an innovative shear

deformation process”, Advances in Cryogenic Engineering – Materials, Vol 60 (Vol 1574, No

1, AIP Publishing), pp197-203, Proceedings International Cryogenic Materials Conference

2013, Anchorage, AK, 06/16-21/2013, 2014.

29. K.T. Hartwig, S. Balachandran, R. Mezyenski, N. Seymour, J. Robinson, and R.E. Barber,

“Fabrication of fine-grained tantalum diffusion barrier tube for Nb3Sn conductors”, Advances

in Cryogenic Engineering – Materials, Vol. 60, (Vol. 1574, No 1, AIP Publishing), pp. 204-

210, Proceedings International Cryogenic Materials Conference 2013, Anchorage, AK, 06/16-

21/2013, 2014.

Publications (Conference Proceedings) Students names italicized

1. K.T. Hartwig and F.J. Worzala, “Dilute Aluminum Alloys: Their Potential in

Superconducting Devices,” Proceedings of the Sixth International Cryogenic Engineering

Conference, Grenoble, France, 406-410 (1976).

2. T.B. Massalski, U. Mizutani, K.T. Hartwig and R.W. Hopper, “Low Temperature Specific

Heat Measurement on Amorphous Alloy Ribbons,” Proceedings of the Third International

Conference on Rapidly Quenched Metals, University of Sussex, Brighton, England, (July 3-7,

pp. 81-88 (1978).

3. K.T. Hartwig and S.E. Van Sciver, “Properties of Joints in Composite Specimens of

Aluminum and Copper,” Proceedings of the Eighth Symposium on Engineering Problems of

Fusion Research, San Francisco, No. 13-16, 1979, IEEE Pub. No. 79CH1441-5 NPS, 1794-

1796 (1979).

4. K.T. Hartwig, A.A. Saffari-Kermani and J.H. Perepezko, “Mechanical Behavior of Dilute Al

Alloys for Low Temperature High Conductivity Applications,” Proceedings of the Fifth

International Conference on the Strength of Metals and Alloys, Aachen, West Germany,

(August 27-31, 1979), 675-680 (1980).

5. K.T. Hartwig and P.G. Appius, “Strength and Electrical Resistance of Cold Drawn Al and

Cu,” Proceedings of the Eighth International Cryogenic Engineering Conference, Genoa, Italy

(3-6 June 1980), IPC Science and Technology Press, 720-725 (1980).

6. K.T. Hartwig, D. Yu and P. Zolliker, “Soldering Studies on an Aluminum Stabilized

Superconductor,” Proceedings of the Ninth Symposium on Engineering Problems of Fusion

Research, October 26-29, 1981, Chicago, IEEE Pub. No. 81CH175-2 NPS, 1330-1332

(1981).


7. Y.M. Eyssa, R.W. Boom, K.T. Hartwig, G.E. McIntosh and S.W. Van Sciver,

“Superconductive Magnetic Energy Storage for Electric Utility Load Leveling,” Proceedings

of the 16th Inter-Society Energy Conversion Engineering Conference, August 9-14, 1981

Atlanta, (5 pages) (1981).

8. K.T. Hartwig, D. Yu and A. Khalil, “Al-Ni and Al-Ca as Potential Stabilizer Alloys,”

Proceedings of the 1982 International Cryogenic Materials Conference, Kobe, Japan, May 11-

14, 1982. Butterworths (Publishers), 489-494 (1982).

9. W.J. Lenling, F.J. Worzala and K.T. Hartwig, “The Properties of Several Welded High

Strength Aluminum Alloys,” TMS-AIME Annual Meeting, March 2-6, 1986, New Orleans,

Louisiana, (paper length and citation unknown).

10. K.T. Hartwig, A book review of “Materials and Processes - Part A: Materials,” Journal of

Testing and Evaluation, Vol. 15, No. 12, p. 125 (1987).

11. C.Y. Hua, D.H. Zhang, W. Han, G.J. Tu and K.T. Hartwig, “Computerized Resistivity and

RRR Measurements on Metal by the Eddy Current Decay Method,” Cryogenic Materials '88,

Volume 2. Structural Materials, Proceedings of the International Cryogenic Materials

Conference, June 7-10, 1988, Shenyang, China, 835-844 (1988).

12. K.T. Hartwig and G.S. Yuan, “Strength and Resistivity Changes Caused by Cyclic Strain at

4.2 K in Pure Aluminum,” Cryogenic Materials '88, Volume 2. Structural Materials,

Proceedings of the International Cryogenic Materials Conference, June 7-10, 1988, Shenyang,

China, 677-686 (1988).

13. K.T. Hartwig and J.T. Gehan, “A Graphical Model of Cyclic Plastic Strain in Pure

Aluminum,” Cryogenic Materials '88, Volume 2. Structural Materials, Proceedings of the

International Cryogenic Materials Conference, June 7-10, 1988, Shenyang, China, 925-932

(1988).

14. K.T. Hartwig, “Measurements of Resistivity Increases by the Eddy-Current Decay Method in

Pure Aluminum Strained and at Cryogenic Temperatures,” Proceedings of the Fall 1988 MRS

Meeting Symposium U – “Non-Destructive Monitoring of Materials Properties,” (5 pages)

(citation unknown).

15. R.J. DeFrese and K.T. Hartwig, “Characteristics of Composite Electrical Conductors for Use

at Cryogenic Temperatures,” PD-Vol. 37, Composite Materials Technology, Proceedings of

the 14th Annual Energy Sources Technology Conference, Houston, Texas, ASME, 37-40,

(1991).

16. Z.K. Parakh and K.T. Hartwig, “Composite Electrical Conductors,” PD-Vol. 45, Composite

Materials Technology, ASME, 57-63, (1992).


17. W.J. Surovik, D. Bray and K.T. Hartwig, “Shell Thickness Measurements in Composite

Conductors Using Ultrasonics,” Non-Destructive Evaluation, PD-Vol. 54, NDE Vol. 11,

Proceedings 16th Annual Energy Sources Technology Conference, Houston, Texas, ASME,

January/February 1993, pp. 13-16 (1993).

18. V.M. Segal, R.E. Goforth and K.T. Hartwig, “The Application of Equal Channel Angular

Extrusion to Produce Extraordinary Properties in Advanced Metallic Materials,” Proc. First

Int’l. Conf. on Processing Materials for Properties, TMS, pp. 971-974 (November 1993).

19. A. Takahashi and K.T. Hartwig, “Fabrication and Properties of High Purity Single Crystal

Aluminum for Low Temperature Conductors,” Proc. First Int’l. Conf. on Processing Materials

for Properties, TMS, pp. 901-904 (November 1993).

20. A. Takahashi, H. Yasuda and K.T. Hartwig, “Electrical Resistivity and Strength Changes of

High Purity Single Crystal Aluminum Caused by Cyclic Strain at 4.2K,” Proc. First

International Conference on Ultra High Purity Base Metals (UHPM-94), May 24-27, 1994,

Kitakyushu-City, Japan, JRCM and JIM, pp. 458-462, (1994).

21. R.E. Goforth, V.M. Segal, K.T. Hartwig and S. Ferrasse, “Production of Sub-Micro Grain

Structure in Aluminum 3003 by ECAE,” Superplasticity and Superplastic Forming - 1995,

“Proceedings of the TMS Annual Meeting - Superplasticity and Superplastic Forming

Symposium,” May 1995, TMS, pp. 25-32 (1995).

22. A. Takahashi, H. Yasuda, L.C. McDonald and K.T. Hartwig, “Electrical Resistivity Increase

of High Purity Aluminum Caused by Cyclic Strain at 4.2K,” Proceedings of the 88th Annual

Meeting of the Japan Light Metals Association, (in Japanese), pp. 177-178 (1995).

23. A. Takahashi, H. Yasuda and K.T. Hartwig, “Production of High Purity Aluminum Stabilizer

Conductor and Its Resistivity Increase by Cyclic Strain at 4.2K,” Proceedings of the 91st Fall

Meeting of the Japan Light Metals Association, pp. 329-330 (1996).

24. K.T. Hartwig, M. Haouaoui and L.R. Cornwell, “Alloy Composition Determinations,” 12th

National Educators’ Workshop, NEW: Update 1997, Standard Experiments in Engineering,

Materials Science and Technology, November 2-5, 1997, Boeing Materials Technology,

Seattle, Washington.

25. H.G. Salem, R.E. Goforth and K.T. Hartwig, “Superplastic Characterizations of 2095 Al-Li

Alloy Processed by ECAE,” Superplasticity and Superplastic Forming 1998, Proceedings of

the TMS Annual Meeting - Superplasticity and Superplastic Forming Symposium, February

14-18, 1998, TMS, pp. 165-178, 1998.

26. J.W. Sinclair, K.T. Hartwig, R.E. Goforth and D.A. Hardwick, “Superplastic Behavior of

Submicron Grain Al-5083,” supplemental volume to Superplasticity and Superplastic

Forming 1998, Proceedings of the TMS Annual Meeting - Superplasticity and Superplastic

Forming Symposium, February 14-18, 1998, TMS, pp. 12-19, 1998.


27. S.R. Agnew, U.F. Kochs, K.T. Hartwig and J.R. Weertman, “Texture Evolution During Equal

Channel Angular Forging and Dislocation Boundary Misorientations After Severe Plastic

Deformation,” Proceedings of the 19th RISO International Symposium on Materials Sciences:

“Modelling of Structure and Mechanics of Materials from Microscale to Product.” Editors

J.V. Cartensen, et al., Riso National Laboratory, Roskilde, Denmark, pp. 201-206 (1998).

28. R.E. Goforth, K.T. Hartwig and L.R. Cornwell, “Severe Plastic Deformation of Materials by

ECAE,” Proceedings of the NATO Advanced Research Workshop, “Investigations and

Applications of Severe Plastic Deformation,” August 2-6, 1999, Moscow. Kluwer Academic

Publishers (Dordrect/Boston/London) pp. 3-12, (2000).

29. J.W. Sinclair, K.T. Hartwig, R.E. Goforth, E.A. Kenik and E. Voelkl, “Microstructure and

Mechanical Properties of Aluminum 5083 Processed by ECAE,” Proceedings of the 2000

TMS Annual Conference, pp. 393-403, TMS (publisher), 2000.

30. R.B. Griffin, A.L. Epps, and K.T. Hartwig, “Laboratory Activities Used in a Sophomore

Materials Science Course at Texas A&M University,” Proceedings of the Materials Science

and Engineering Education in the New Millennium Symposium, Spring 2000, MRS Meeting,

April 2000, available electronically at “www.mrs.org/cgi-bin/mrs-member”.

31. M.N. Srinivasan, K. Ramakrishnan, X. Kaculi and K.T. Hartwig, “Microstructure and

Properties of Mechanical Alloyed and Equal Channel Angular Extruded Tungsten Carbide,”

Proceedings of the International Conference on Advanced Materials, Munich, September 25,

2000.

32. K.T. Hartwig, H. Zapata, A. Parasiris and S.N. Mathaudhu, “Consolidation of Metallic

Powders by Equal Channel Angular Extrusion,” Proceedings of the Powder Materials:

Current Research and Industrial Practices Symposium, edited by F.D.S. Marquis, N.

Thadhami, and E.V. Barrera, TMS Publications, pp. 211-221, 2001.

33. K.T. Hartwig, S.N. Mathaudhu, H.J. Maier and I. Karaman, “Hardness and Microstructure

Changes in Severely Deformed and Recrystallized Tantalum,” Ultra-Fine Grained Materials

II, edited by Y.T. Zhu, T.G. Langdon, R.S. Mishra, S.C. Semiatin, M.J. Saran, and T.C. Lowe,

TMS Publications, pp. 151-160, 2002.

34. Griffin, R.B., K.T. Hartwig, R. Barber, T. New and I. Karaman, “Development of a

Deformation Processing Laboratory, National Educators’ Workshop Update 2001,” College

Park, Maryland, October 2001.

35. R.B. Griffin, A.L. Epps and K.T. Hartwig, “Laboratory Activities Used in a Sophomore

Materials Science Course at Texas A&M University,” MRS, Material Science and

Engineering Education in the New Millenium, MRS 2000, San Francisco, California, April

2000. Location of paper follows: http://www.mrs.org/cgi-bin/mrs-member.

http://www.mrs.org/cgi-bin/mrs-member


36. S.N. Mathaudhu, J.T. Im, R.E. Barber, I.E. Anderson, I. Karaman and K.T. Hartwig,

“Progress in Consolidation of Amorphous Zr-Based Powder into Bulk Metallic Glass,

Supercooled Liquids, Glass Transition, and Bulk Metallic Glasses, Edited by T. Egami, A.L.

Greer, A. Inoue, and S. Ranganathan, Proceedings MRS 2002 Fall Meeting, December 2-6,

2002, Boston, MA, Vol. 754, pp. 191-198, 2003.

37. Kaculi, X., M.N. Srinivasan and K.T. Hartwig, “Use of High Intensity Milling and ECAE to

Produce and Consolidate Nanostructured TiSi,” Proceedings of the 2003 ASME International

Mechanical Engineering Congress and Exposition, Washington, DC, November 16-21, 2003,

Paper IMEC 2003-4229, 7 pages, 2003.

38. K.T Hartwig, I. Karman, M. Haouaoui and S.N. Mathaudhu, “Consolidation of Cu and

Amorphous Zr-Based Powders by Severe Plastic Deformation,” Proceedings of the 2003

NATO Advanced Research Workshop on “Metallic Materials with High Structural

Efficiency,” September 6-13, 2004, Kiev, Ukraine, in press, 2004.

39. K.T. Hartwig, R.E. Barber and S. Mathaudhu, “Microsturctural refinement of bulk Nb and Ta

by severe plastic deformation for composite superconductor applications,” Proceedings of the

NATO Workshop on Nanomaterials by High-Pressure Severe Plastic Deformation,

September 22-26, 2004, Donetsk, Ukraine, in press, 2005.

40. S. Bansai, A. Saxena, K.T. Hartwig and R.R. Tummala, “Mechanical Properties of ECAE

Nanocrystalline Copper and Nickel,” Proceedings of the ICMAT Conference, December

2004, Singapore, in press, 2005.

41. Hartwig, K.T., Karaman, I. and Mathaudhu, S.N., “Plans for synthesis of bulk amorphous

metal matrix composites,” Proceedings of 2005 NSF DMII Grantees Conference, Scottsdale,

Arizona, January 3-6, 2005.

42. J.T. Im, K.T. Hartwig and J. Sharp, “Processing of Bi90Sb10 by equal channel angular

extrusion”, Proceedings 2007 International Conference on Thermoelectricity, IEEE Publisher,

pp 443-447, 2008.

43. K.T. Hartwig, S. Balachandran, R.B. Griffin, S.N. Mathaudhu, T. Pyon, and R.E. Barber,

“Tantalum sheet with improved copper-tantalum co-deformability”, Proceedings of the

International Conference on Tungsten, Refractory & Hardmetals VII, National Harbor, MD,

pp xxx-xxx, June 9-12, 2008.

44. M. Al-Maharbi, D.C. Foley, I. Karaman, K.T. Hartwig, L. J. Kecskes, and S.N. Mathaudhu,

“Microstructure and properties of AZ31B Mg alloy processed by equal channel angular

extrusion”, Proceedings of the 8th International Conference on Magnesium Alloys and their

Applications, edited by K.U. Kainer, Wiley-VCH, pp. 321-325, 2009.

45. Al-Maharbi, M., Foley, D.C., Karaman, I., Beyerlein, I., Hartwig, K.T., Kecskes, L.J., and

Mathaudhu, S.N., “Importance of Crystallographic Texture of AZ31B on Flow Stress


Anisotropy and Tension-Compression Asymmetry,” Magnesium Technology 2010:

Proceedings of a Symposium Sponsored by the Magnesium Committee of the Light Metals

Division of TMS, Edited by S. Agnew, Neale R. Neelameggham, Eric A. Nyberg, W.

Sillekens, TMS, Warrendale, PA, USA, pp. 445-450, 2010.

46. Foley, D.C., Al-Maharbi, M., Hartwig, K.T., Karaman, I., Kecskes, L.J., and Mathaudhu,

S.N., “Mechanical Behavior of AZ31 Due to Texture and Microstructure,” Magnesium

Technology 2010: Proceedings of a Symposium Sponsored by the Magnesium Committee of

the Light Metals Division of TMS, Edited by S. Agnew, Neale R. Neelameggham, Eric A.

Nyberg, W. Sillekens, TMS, Warrendale, PA, USA, pp. 451-454, 2010.

47. Al-Maharbi, M., Foley, D.C., Karaman, I., Hartwig, K.T., Kecskes, L.J., and Mathaudhu,

S.N., "Microstructure and Properties of AZ31B Mg Alloy Processed by Equal Channel

Angular Extrusion," Magnesium – 8th International Conference on Magnesium Alloys and

Their Applications, Edited by K.U. Kainer, Wiley-VCH, Darmstadt, Germany, pp. 321-325,

2010.

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