tofd_cv.pdf

“When inspection becomes service” Time Of Flight Diffraction

The AIB-Vinçotte Approach

B. Verhagen (07/2003) 1 of 12 Time Of Flight Diffraction.doc AV- International N.V., Quality Management System and NDT activities are covered by an accreditation certificate delivered by Beltest, according to the European standard EN-45001 and 45004 (type A), and NBN EN ISO 9002. AIB-Vinçotte Group - Offices : Breda, Botlek, IJmuiden (NL)- Antwerp - Brugge – Vorst (Brussels) - Ouderghem (Brussels) - Charleroi - Gent - Hasselt - Kortrijk - Liège - Namur (Belgium) - Abu Dhabi (UAE) -Dubai (UAE) - Doha (Qatar) – Muscat (Oman) - Chalon-sur-Saône (France) – Houston, Florida, Michigan (USA) - Iseo (Italy) - Luxembourg (LU) - Geneve (Suise) - Karachi (Pakistan) - Budapest (Hungary) - Marokko - Tunesie - Algeria

NDT - Special Applications

AIB-Vinçotte Group

TIME OF FLIGHT DIFFRACTION Inspections

Ben Verhagen

november, 2003




AIB-Vinçotte Group AIB-Vinçotte is active internationally, and offers a wide range of services aimed at improving safety, quality and the environment. It has the very latest measuring equipment, some of which was designed by its own R&D department. Although the AIB-Vinçotte Group is a future-oriented company in every respect, it can also boast about a rich past. Vinçotte was founded in 1872, and AIB in 1890. From the outset, both companies worked to improve safety. AVI have developed a wide range of activities and services, aimed at meeting the fast-changing technological and commercial requirements of businesses. Through its know-how, AIB-Vinçotte has established an international reputation, which has now spread all over the world. Over 1 500 employees contribute every day to the activities of this European-scale firm. Three hundred engineers and 800 technicians place their competence in the field of safety and quality at the disposal of businesses. Over 38 000 companies regularly call on their technical support, consultancy or expertise. AIB-Vincotte has positioned itself from the outset as the Belgian representative in various

European organisations. For the industry, this makes us the ideal partner for interpretation and implementation of European directives. Thanks to a large number of cooperation and representation agreements throughout the industrialised world, your project can be monitored from start to finish.

the AIB-Vinçotte Group offer services in the field of : Buildings and construction Machines and CE-marking Non-destructive testing Certification




Environment Transport Food

AV is a member of IQNet = International Quality Network EPERC = European Pressure Equipment Research Council ENIQ = European Network for Inspection Qualification ISA = International Supplier Auditing bv AIB-Vinçotte NDT Department

The AIB-Vinçotte NDT Department performs most kind of examinations available. In addition, has proven through the years the experience and reliability of all the different examinations.

Some of the surface examinations available at AVI Dye Penetrant Inspection (DPI) Magnetic Particle Inspection (MPI) Tele-visual inspections Eddy current testing on heat exchanger coils Some of the volumetric examination available at AVI; X-ray and gamma ray examination Digital X-ray and gamma ray examination Manual Ultrasound examination Fully and Semi- automated Ultrasound examination Time Of Flight Diffraction (TOFD) Ultrasound testing using Phased Array




Ultrasonic testing – PIMMS Eddy current testing

Some of the special examinations available at AVI; Ferrite measurements Helium-aided tightness test Incotest Material analysis (PMI) Metallurgy lab Non destructive testing on pipelines PCM (Pipe current mapper) Performance measurement and energy management Rotating machines Thermography Vacuum testing Vibration analysis

Example of a Pre Service inspection of a sphere with TOFD

AVI integrates multiple fields of Activities: AVI does Research and Development on different fields and applications: Implementation of new techniques and Codes. AVI designs and manufactures Ultrasonic probes for example the TRL Phased Array probes: Transmitter Receiver Longitudinal probes. Robotic: development and fabrication of scanning mechanism. UT procedures: developments of methods based on International norms and codes. AVI uses up to date specific hardware and software and where deemed necessary software will be written in house. Training Standard Courses: Level 1 & 2 in PT, MT, RT, UT Certification: SNT-TC-1a (ASNT) or NBN EN473 (BANT). A Characterisation lab is available with an accredited Quality System Definition and development of dedicated NDT methods all expertise works requiring qualified personnel in conventional and specialised NDT Methods ASNT/EN473 L I- II - III VT, PT, MT, RT, UT ,ET, AUT, TOFD, PMI, INCOTEST, Vibration analysis, Leak testing…. Risk Based Inspection.




Qualifications and Accreditations: EN 45 001 EN 45 004 EN 45 012 / ISO 14 000 Certification Quality Systems ISO 9000 / QS 900 ISO 9001 Certification Safety Systems VCA**. ASME BPV Code Section VIII div.1 edition 2001 U-Stamp Code Case 2235-3 Qualifications Fully qualified conform the ASME XI and ASME III qualifications (Nuclear applications). Why advanced Ultrasonic techniques Because no ionising radiation is used, the inspection does not interfere with the production or construction process. Advanced UT can therefore in general be executed during day shift with other employees in the neighbourhood. There is no need for transportation of construction parts or pipe spools to an X-Ray bunker; the associated logistic problems and cost do not exist. Thickness variations do not greatly affect the inspection speed. Also very thick materials can be examined in the same fast and efficient manner.

The Automated UT data is very accurate and is presented in an easily understood format. All data is stored for future reference, such that any evolution during a in service period can be followed. Improved inspection sensitivity and improved inspection accuracy is achieved. Proof of coverage by means of encoded positioning. The pre-service inspection approach is fully based on procedures developed by AIB-Vinçotte International conform the ISO 9001 quality system. The pre-service inspection approach is based on applicable specifications. Because the high reliability the chance of an unexpected shut-down or failure is reduced to a minimum. What is Time Of Flight Diffraction? The TOFD technique is an effective fully computerised inspection method for the detection and sizing of flaws with accuracy never achieved before. With the TOFD technique which applies diffraction signals instead of reflection signals type, location, geometry or orientation of the anomalies is in most cases irrelevant for detection and sizing. In the TOFD technique a transmitter and a receiver are placed on equal distances of the weld focused at the same location in the weld.




The scanner with the probes is moved in most cases swiftly parallel with the weld. A transmitter sends compression waves into the material with a great beam spread in the through wall direction. A compression wave will propagate from the sender towards the receiver. The first signal to arrive is the wave near the surface travelling towards the receiver; this wave is called a lateral wave (1). Because of the beamspread the wave will also bounce back from the backwall (4), the differences in time give an accurate wall thickness reading and will be used for time base calibrations. When the beam encounters an anomaly, diffraction signals will occur on the edges of the indication. A upper tip diffraction (or reflection of indications with a volume) will mark the top of an indication (2). A lower tip diffraction of an opposite phase will occur from the bottom of the indication (3). Flaw size, position, location, and/or shape are relatively irrelevant for the TOFD technique. The diffracted signals will be send to the receiver, the differences in timepath will give a very accurate measurement of the through wall height of the anomaly.

PCS 1 Lateral wave 2 Upper tip diffraction 3 Lower tip diffraction 4 Back wall refraction 5 Mode converted signals

Schematic view of a TOFD set up A shear wave is also send into the material and becomes a compression wave (or vice versa) these signals are called mode converted signals (5). The mode-converted signals can give additional information of the detected indications and also make it possible in some cases to detect anomalies next to the weld.

Typical TOFD A-Scan

1 2 3 4 5

+ RF -

Time in µ seconds ⇒




By using an encoder and data recording system, multiple A-scans can be recorded in the parallel direction. The A-scans will be manipulated by the software of the data acquisition system and converted to a greyscale, whereby the positive phases will be visualised as white and the negative phases as black. Analysing will be done with software by using simple geometry calculations. On not straightforward geometries sophisticated software can be used for analysing and calculating the location of indications.

Example of a TOFD scan History The TOFD technique is now in use for over 30 years and has been well proven. In the seventies, the Time Of Flight Technique was

used for through wall sizing of in service indications mainly on nuclear applications. In the eighties TOFD was used as a tool for detection and sizing in the nuclear and conventional in service inspections, and by the end of the eighties TOFD was recognised in many cases in Europe as a Pre-Service inspection tool. In the nineties the ASME rules followed to allow TOFD as a primary inspection tool to perform TOFD inspections on newly built vessels and reactors ,first for wall thickness over 4” and towards the end of the nineties the Code has reduced the minimum wall thickness from 4” (100 mm) to ½” (12,5mm). In addition, the Euro Norm EN 583-6 describes TOFD as a method now in the 21th century.

Schematic example of TOFD set up

Applications TOFD can be applied on all low or non-alloyed materials. Moreover, TOFD can be used on most geometries and weld configurations.




A reliable inspection can be performed starting from wall thickness of 6mm and a diameter from 80 mm. Inspections have been done in many situations for example on operating temperatures over 400°C, under water (Subsea pipelines) and on wall thickness over 400 mm. Welds can be inspected when they are partly welded. One of the major applications is on heavy wall thickness to verify the absence of cracks and lack of fusion not detectable with radiography. Because the data is highly reproducible and recorded on permanent data storage, TOFD is an ideal tool for in service inspections and RBI programs, the final data from PSI can be compared with the new ISI data. A great advantage is that the data is digital and can be mailed or replicated on CD rom and send around the world for a second opinion on an offline data interpretation PC. The improved accuracy and reliability of the data can be used for fracture mechanics and fitness for purpose calculations. TOFD can be used as a primary tool for detecting Hydrogen damages (HHA, HIC, SOHIC etc), Corrosion (Root, Base materials etc), cracking (micro and macro).

maximum allowable length (lmax) if the heigth of a embedded defect does not exceed h2 or the heigth of a surface breaking defect does not exceed h3.

maximum allowable heigth (h1) when the length exceeds lmax

Thickness range lmax h3 h2 h1 8 mm < dd ≤ 15 mm dd 2 mm 3 mm 1 mm 15 mm < dd ≤ 40 mm dd 2 mm 4 mm 1 mm 40 mm < dd ≤ 60 mm 40 mm 3 mm 5 mm 2 mm 60 mm < dd ≤ 100 mm

50 mm 3 mm 5 mm 2 mm

Dd > 100 mm 60 mm 4 mm 6 mm 3 mm Example of acceptance criteria (TO 50 rev. 1) Approach to the Code Case 2235-3 Introduction out of the technical basis for ASME BPV Code Section VIII div.1 edition 2001 Code ; “In 1996, Code Case 2235 was approved by the

ASME B&PV Code Committee which allows ultrasonic examination of welds in lieu of

radiography for ASME Section VIII Division 1 and Division 2”

(2000 PVP Conference, 11/09/1999)

The approach is performing an semi- automated inspection with a combination of Time Of Flight Diffraction (TOFD) and Pulse Echo (PE) using the Phased Array technology AVI has developed and validated procedures conform the CC2235-3 on Carbon Seel TOFD is




an ideal tool for accurate sizing and detection in weld volumes TOFD is a fast and reliable inspection tool Phased Array technology allows the use of multiple UT techniques with the same probe set on single line scan. The PE channels give an extra confirmation on indications detected with the TOFD channels PE makes it possible to increase coverage of the inspected volume width. The PE channels make lateral positioning possible Amplitude comparative solutions are possible where necessary Inspection up to 4” (100 mm) in one single line scan

Example of a TOFD/PE scan

Why TOFD inspections The use of Automated UT results in the following advantages for both manufacturer and end user: As no ionising radiation is used, a saving can be achieved in construction time!

Example of the AVI Phased Array / TOFD equipment The inspection does not interfere in most cases with the construction program. During the prefabrication stage, the sometimes very large parts can be inspected at the welding location without the need for moving them to an X-Ray bunker. During the site construction, welding can take place around the clock because there is no necessity to evacuate large areas for the inspection. The versatility of the technique allows to decrease drastically the probability of missing




a significant defect, the cost of missing a defect can be lead to an unplanned shutdown Because accurate sizing and locating is possible, there will no lead to unnecessary repairs All data is digitally stored for future reference Because of the reproducibility of the data and ability to size very accurate (in most cases better than 0,5mm), TOFD is an ideal tool for monitoring inspections. Relatively fast, because a single line scan is applied in most cases. Why AIB-Vinçotte? The Division NDT from AIB-Vinçotte International puts more than 100 engineers and technicians available to your services. They are all specialised in various disciplines from the non destructive testing, certified according to European and international regulations. AIB-Vinçotte International has a wide range of modern material available which performances are regularly verified in laboratories. Many national and international references give evidence of the competence and the renown of AVI in the world of non destructive testing. AIB-Vinçotte is ready and qualified for most, if not all possible Time Of Flight Diffraction inspections.

Example of latest TOFD equipment used by AIB-Vinçotte




References BS 7706 Guide to Calibration and setting up

of the ultrasonic Time of Flight (TOFD) Technique for the detection, location and sizing of flaws 1993

TC 121 Draft Euro Norm

BS 4515 TOFD as a method for defect detection and sizing

ASME BPV Code Section VIII div.1 & 2 edition 2001

Code case 2235-6 Use of Ultrasonic examination in lieu of radiography, Section VIII, div 1 & 2

NBN ENV 583-6 European standard, TOFD as a method for defect detection and sizing

CEN/TC54/WGE/N51 European Unfired Pressure Vessel Directive

TO 50 rev. 1 (WGAC 9613 rev 10)

Draft acceptance criteria for TOFD (PMP/KINT project)

Technical basis for ASME SECTION VIII Code Case 2235 on ultrasonic examination of welds in lieu of radiography

2000 PVP Conference,11/9/99 by; Mahendra Rana, Owen Hedden, Dave Cowfer, Roger Boyce

Time Of Flight Diffraction BANT Newsletter

June 2000, By Ben Verhagen

Procedure NDT AV 792 The general procedure for TOFD examinations

NEN 3650-2 API 579 (FFS) API 580 (RBI) AS4307-1999 Australian Standard "Pressure

Equipment - Examination and Testing

BS 4525 ASME V CIT in art. 4 ASME VIII pt 1&2 vanaf 1/2” (12,7mm) API 5L ASTM E-273 Engineering applications of ultrasonic TOFD 2nd edition.

ASTM E-1961 (TCPL pipeline application) ASME XI (Accurate Sizing) API RP2X Offshore Recommended Practice CSA Z-245 API 620 ASTM E07.06 Draft standard Practice for use of

the Time of flight diffraction.




Contact us:

AIB-Vincotte International Advanced UT- NDT department

Koningslaan 157 1190 Vorst (Brussel)

Belgium Phone; +32 2 536 84 31 Fax; +32 2 536 84 42

[email protected]

AIB-Vincotte Nederland Special NDT department

Heusing 2 4802 HW Breda

Netherlands Phone; +31 (0)76 571 22 88 Fax; +31 (0)76 587 47 60

[email protected] [email protected]

http:\\www.aib-vincotte.com

Phased Array industrial advanced UT Procedures for carbon, stainless and other alloyed steels Introduction The Phased Array Technology has been implemented for a few years now in the semi- and fully automated UT inspections, for Pre and In Service Inspections (PSI and ISI) on all kind of carbon steels for assessment on different degrading mechanisms. The Phased Array Technology has proven his value for inspection applications. Principles of the UT phased-array technique The Phased Array concept is based on the use of ultrasound probes made up of a number of individual elements that can each function separately as transmitter and receiver. Rapid electronics and advanced software are incorporated into the acquisition system, so that one can generate several virtual probes starting from one physical multi elements probe. The parameters of those electronic created probes, like refracted angle in compression or shear wave modes, aperture and focussing properties can be easily set to satisfy the requirements of specific and complex ultrasound investigations. Ultrasonic testing of thick steel components in lieu of radiography. All steel components were examined for decennia with the use of radiographic methods by codes requirement because no reliable alternatives where available. There was also no need for an alternative when time and place were not as restricted as now. Over the years the advanced ultrasonic inspection techniques such as line scans, raster scans and TOFD became widely accepted for the In Service Inspections. In the Netherlands the TOFD technique became even accepted for Pre Service Inspections with it’s own acceptance criteria. For the rest of the world there was a breakthrough with the acceptance of the ASME Code Case 2235 “Use of Ultrasonic examination in lieu Radiography” first on heavy wall structures from 4” (100mm) and later the wall thickness is brought back to ½” (12,5 mm). The approach from the ASME has as main difference to TO50 rev1 (the Dutch acceptance criteria) that no technique, inspector nor procedure is accepted before it’s proven to work on a realistic sample. To full fill all the rules in the code it is generally necessary to use multiple line scans and multiple techniques to detect the smallest required defect and to cover the volume to examine (weld volume + 1” or t.) All the different line scans and techniques can be covered now in one line scan with the phased array technology which acquires multiple TOFD scans and multiple pulse echo angles and techniques in one line scan on carbon steel. The story on Austenitic and other alloyed steels is somewhat different. Years it was widely believed that an inspection on stainless steels was only possible with radiography. With the development of new UT probes with composite crystals and focused angle beams it became possible to perform an reliable inspection, however an inspection with all the required probes is time consuming and expensive. The knowledge and possibilities of a manual or automated ultrasonic examination is already for years available at AVI and have been applied in nuclear power stations where the inspections take place conform ASME XI and ASME III. The technology was also available for other industries and pre service inspections, however these applications are very time consuming and not economic attractive. Several realistic validation blocks in different materials and thicknesses have been investigated according to the code requirements, using the phased array technology. The detection and sizing in the volume to be inspected were successfully demonstrated. The qualification process for the UT examination procedures using the phased array technology was conducted according to various codes (ASME Section I, para. PW-11; Section VIII, Division 1, para. UW-11(a); and Section VIII, Division 2, Table AF-241.1, Cases 2235- 3 and 4, ASME XI, ASME III BS PD 5500 and AD Merkblatt 2002, HP5/3), on different materials ( Carbon steels,

low-alloyed steels, Austenitic steels, casted Austenitic steels and 9Ni steel welded with a nickel based alloy filler) and were assessed by different international Qualification and Notified Bodies. The PA technology allows the detection, in one single translation parallel to the weld, of reflectors situated in the entire volume and with the sensitivity required by the code. The smallest imposed reference reflectors can be detected with a good signal to noise ratio. AIB-Vinçotte International has build a major experience on all kind of inspections and inspection techniques and is now probably the market leader on the knowledge of Phased Array. AVI performs momentarily inspections at most of the important constructors of vessels and reactors on alloyed and non-or low alloyed steels and is successfully qualified conform most codes. Additional information: [email protected] [email protected]

Type of intervention Component(s) Client Place Start DateSemi-automated UT PWR flexures Electrabel Belgium, Doel 09/1983Semi-automated UT PWR flexures Electrabel Belgium, Doel 02/1984Semi-automated UT PWR flexures Electrabel Belgium, Tihange 03/1984Automated UT Inconel welds of PWR safety injection nozzles Electrabel Belgium, Doel 12/1985Automated UT Inconel welds of PWR safety injection nozzles Electrabel Belgium, Doel 05/1986Automated UT Austenitic steel welds of PWR main coolant pump Electrabel Belgium, Tihange 02/1989Automated UT Bimetallic weld EdF France, Chalon 02/1991Automated UT Austenitic steel welds of PWR main coolant pump Electrabel Belgium, Doel 09/1991Automated UT Inconel welds of PWR safety injection nozzles Electrabel Belgium, Doel 06/1992Automated UT Inconel welds of PWR safety injection nozzles Electrabel Belgium, Doel 09/1992Automated UT Carbon steel nozzle-to-vessel weld of PWR pressuriser Electrabel Belgium, Doel 09/1993Automated UT Austenitic steel weld of main coolant pump outlet nozzle Electrabel Belgium, Doel 07/1994Automated UT Austenitic steel welds of PWR auxiliary piping Electrabel Belgium, Tihange 02/1995Automated UT (TOFD, PE) Pipeline girth welds (GMAW, 48", t = 14 / 17 mm) DAIP Morocco 03/1995Automated UT Cast austenitic steel elbows of PWR primary piping EdF France, Paris 05/1995Automated UT Inconel welds of PWR safety injection nozzles Electrabel Belgium, Doel 10/1995Automated UT (TOFD, PE) Pipeline girth welds (SMAW, 36", t = 12 mm) Distrigas Belgium, Brussels 12/1995Semi-automated TOFD Carbon steel base material of spherical reactors ESSO Belgium, Antwerp 02/1996Automated UT (TOFD, PE) Austenitic steel base material of alternator retaining rings Jeumont Ind. France, Blénod 03/1996Automated UT (TOFD, PE) Pipeline girth welds (SMAW, 16", t = 8 mm) Distrigas Belgium, Boom 04/1996Semi-automated TOFD Circular welds of PWR steam generator Electrabel Belgium, Doel 05/1996Semi-automated TOFD Carbon steel base material of spherical reactors ESSO Belgium, Antwerp 05/1996Automated UT (TOFD, PE) Austenitic steel base material of alternator retaining rings Jeumont Ind. France, Jeumont 06/1996Automated UT (TOFD, PE) Austenitic steel base material of alternator retaining rings Jeumont Ind. France, Jeumont 07/1996Semi-automated TOFD Carbon steel base material of spherical reactors ESSO Belgium, Antwerp 07/1996Semi-automated TOFD Austenitic steel piping base material FINA Oleo Chem. Belgium, Ertvelde 09/1996Semi-automated TOFD Carbon steel base material of spherical reactors ESSO Belgium, Antwerp 09/1996Semi-automated TOFD Circular welds of PWR steam generator Tractebel France, Chalon 10/1996Semi-automated TOFD Bimetallic weld of PWR pressuriser Electrabel Belgium, Tihange 12/1996Automated UT& ET Austenitic steel welds of PWR main coolant pump Vattenfall AB Sweden, Ringhals 09/1997Automated UT Carbon steel nozzle-to-vessel weld of PWR pressuriser Electrabel Belgium, Doel 09/1997Semi-automated TOFD Longitudinal and circular welds in aluminum components AMOS Belgium, Liege 10/1997Semi-automated TOFD Circular carbon steel welds of ball valves Distrigas Belgium, Zelzate 10/1997Automated UT (TOFD, PE) Austenitic steel base material of alternator retaining rings Jeumont Ind. France, Blénod 12/1997Automated UT Heavy wall carbon steel forging of cement oven CBR Belgium, Harmignies 01/1998Semi-automated TOFD Pipeline girth welds (SMAW, 36", t = 12 mm) Distrigas Belgium 02/1998Automated UT (TOFD, PE) Pipeline girth welds (SMAW, 40", t = 14.5 mm) Distrigas Belgium 02/1998Semi-automated TOFD Circular welds CS piping Kemira France, Lille 03/1998Semi-automated TOFD Pipeline girth welds (SMAW, 36", t = 12 mm) Distrigas Belgium 03/1998

Industrial applications of automated UT : AIB-Vincotte reference list

1 of 5 AIB-Vinçotte International NDT 9/12/2003

Type of intervention Component(s) Client Place Start Date


Automated UT (TOFD, PE) Austenitic steel base material of alternator retaining rings Jeumont Ind. France, Porcheville 04/1998Semi-automated TOFD Circular welds CS piping Kemira Belgium, Tertre 04/1998Automated UT& ET Austenitic steel welds of PWR main coolant pump Vattenfall AB Sweden, Ringhals 05/1998Semi-automated TOFD Carbon steel base material of spherical reactors ESSO Belgium, Antwerp 06/1998Semi-automated TOFD Pipeline girth welds (SMAW, 36", t = 12 mm) Distrigas Belgium 06/1998Semi-automated TOFD Pipeline girth welds (SMAW, 36", t = 12 mm) Distrigas Belgium 07/1998Semi-automated TOFD Expertise on rolling cylinders Hoogovens Belgium, Duffel 07/1998Semi-automated TOFD Austenitic steel piping base material FINA Oleo Chem. Belgium, Ertvelde 08/1998Semi-automated TOFD Pipeline girth welds (SMAW, 36", t = 12 mm) Distrigas Belgium 08/1998Automated UT (TOFD, PE) Pipeline girth welds (SMAW, 56", t = 19 & 23 mm) Megagaz Poland, Mogilno 09/1998Semi-automated TOFD Carbon steel base material of spherical reactors ESSO Belgium, Antwerp 10/1998Semi-automated TOFD Pipeline girth welds (GMAW, 40", t = 15 mm) Denys Belgium 12/1998Automated UT (TOFD, PE) Austenitic steel base material of alternator retaining rings Jeumont Ind. Belgium, Langerlo 04/1999Automated UT (TOFD, PE) Austenitic steel base material of alternator retaining rings Jeumont Ind. France, Vaires s/Marne 05/1999Automated UT (TOFD, PE) Austenitic steel base material of alternator retaining rings Jeumont Ind. France, Le Havre 05/1999Automated UT (TOFD, PE) Austenitic steel base material of alternator retaining rings Jeumont Ind. France, Jeumont 06/1999Semi-automated TOFD Reactor vessel head-to-flange weld (Tihange 1) Tractebel France, Chalon 06/1999Automated UT (TOFD, PE) Austenitic steel base material of alternator retaining rings Jeumont Ind. France, Martigues 06/1999Automated UT& ET Austenitic steel welds of PWR main coolant pump Vattenfall AB Sweden, Ringhals 07/1999Automated UT Thermal barrier Doel 2 (Cast stainless steel) Jeumont Ind. Maubeuge, France 08/1999Automated UT Austenitic steel welds of PWR main coolant piping KKB Switzerland, Beznau 09/1999Automated UT Retaining rings : ex - pont sur chambre3 Jeumont Ind. France, Maubeuge 10/1999Semi-automated TOFD Stainless steel 30" pipe Ineos Belgium, Kallo 10/1999Data-analysis Specimen A & B (Austenitic steel mock up welds) Netlab Belgium, Brussels 10/1999Semi-automated TOFD Heavy wall carbon steel forging of cement oven CBR Belgium, Oubourg 11/1999Automated UT Test specimen "SL" Electrabel Belgium, Brussels 11/1999Automated UT Retaining rings : Phenix project Jeumont Ind. France, Marcoul 11/1999Semi-automated TOFD Expertise on Longitudinal SS weld Electrabel Belgium, Tihange 01/2000Data-analysis Specimen C (Austenitic steel mock up weld) Netlab Belgium, Brussels 02/2000Qualification PDI qualification (IGSCC) for KKL KKL USA, Charlotte NC 03/2000Semi-automated TOFD Liquid gas sphere Lyondell Belgium, Gent 03/2000Semi-automated TOFD PSA - adsorbers: crack detection on vessel head Totalfina Belgium, Antwerp 03/2000Semi-automated TOFD Crack detection on vessels RD103 and FA201 Petroplus Belgium, Antwerp 03/2000Automated UT MCP welds of primary circuit Electrabel Belgium, Doel 04/2000Semi-automated TOFD Carbon steel piping 6" to 16" Kemira Belgium, Tertre 05/2000Automated UT BWR recirculation piping welds KKL Switzerland, Leibstad 07/2000Semi-automated TOFD Druw welds Ø 2500 Electrabel Belgium, Kallo 08/2000Semi-automated TOFD PSA - adsorbers: crack detection on vessel head Totalfina Belgium, Antwerp 09/2000Semi-automated TOFD Crack detection on Breech lock exchangers Totalfina Belgium, Antwerp 11/2000




Semi-automated TOFD Propyleen sphere: crack detection BP (ex-amoco) Belgium, Geel 11/2000Automated UT Cimenterie - Tyres CBR Belgium 12/2000TOFD Cooling water piping Lyondell/ABB Netherlands 02/2001Automated UT Pressuriser - Dissimilar metal weld - Surge line EBL -Tihange 1 Belgium 03/2001Automated UT Primary welds 2, Pump inlet and outlet EBL -Tihange 1 Belgium 03/2001Semi-automated TOFD Longitudinal and circumfrencial welds of pressure vessel 2 EBL - Awirs Belgium 05/2001Semi-automated TOFD TOFD GV3 Tihange 2, Nozzle feed water weld EBL - Tihange 2 Belgium 05/2001Semi Auto UT High pressure Diamant Board Belgium 06/2002Semi-automated PA-TOFD PA TOFD&PE on W723 shell2pipeplate weld BASF Belgium 06/2001Semi-automated TOFD Crack detection on Breech lock exchangers Totalfina Belgium, Antwerp 06/2001Automated UT New welds primary circuit SGR Ti2 EBL - Tihange 2 Belgium 07/2001Semi-automated TOFD Longitudinal and circumfrencial welds of pressure vessel 2 EBL - Kallo Belgium 08/2001Automated UT 14" CS weld (N17) pressuriser EBL - Doel1 Belgium 08/2001Automated UT (TOFD, PE) Austenitic steel base material of 4 alternator retaining rings Jeumont France 08/2001Automated UT Recirculation piping welds BWR ISI2001 KKL Switzerland, Leibstad 08/2001Automated UT (TOFD, PE) Austenitic steel base material of 4 alternator retaining rings Jeumont France 08/2001Automated UT 14" bimetallic weld of presuriser surge line EBL - Tihange3 Belgium 09/2001Automated UT (TOFD, PE) Austenitic steel base material of 3 alternator retaining rings Jeumont France 10/2001Semi-automated TOFD Longitudinal and circumfrencial welds of pressure vessel 1 EBL - Kallo Belgium 10/2001Semi-automated TOFD Pressure vessels Degussa Belgium 10/2001Semi-automated TOFD Pressure vessels Degussa Belgium 10/2001Phased Array TOFD / PE Succesfull Qualification ASME CC 2235-3 (Coek, CS) Lloyds Belgium 01/2002Automated UT 14" weld of presuriser surge line, Gravelines EDF-GDL France 02/2002Semi Auto UT High pressure Diamant Board Belgium 02/2002Semi-automated TOFD Crack detection on Breech lock exchangers Totalfina Belgium, Antwerp 02/2002Automated UT 14" bimetallic weld of presuriser surge line - Qualification (BEZNAU) NOK SUISSE 02/2002Phased Array TOFD / PE Multiple Longitudinal and circumfrencial welds (thick CS) PSI Coek Belgium 03/2002Phased Array PE + TOFD Carbon steel flange of of changer Air Liquide Feluy Belgium 04/2002Automated UT 14" bimetallic weld of presuriser surge line EBL - Doel3 Belgium 04/2002Automated UT (TOFD, PE) Austenitic steel base material of 2 alternator retaining rings (Doel3) Jeumont Belgium 04/2002Automated UT (TOFD, PE) Austenitic steel base material of 1 alternator retaining ring (Gravelines) Jeumont France 05/2002Phased Array TOFD / PE Succesfull Qualification ASME CC 2235-3 (G&G, CS) G&G International Belgium 05/2002Phased Array TOFD / PE Multiple Longitudinal and circumfrencial welds (thick CS) Limox Belgium 03/2002TOFD Inspection Bridge Surface In Service Inspection Holandia, RWS Netherlands 06/2002DEPEC Oven piping crack detection Electrabel Belgium 06/2002Phased Array TRL PE Succesfull Qualification ASME CC 2235-4 (G&G, Stainless Steel ) G&G International Belgium 06/2002TOFD Inspection ISI at elevated temperatures Kemira Belgium, Tertre 06/2002TOFD Inspection Crack sizing at elevated temperatures (+/- 450°C) ISI Hydro Agri Trinidad, West Indies 06/2002




Automated UT 14" bimetallic weld of presuriser surge line - (BEZNAU) NOK SUISSE 07/2002Automated UT 14", 4" and 6" bimetallic weld of presuriser EBL - Doel4 Belgium 07/2002Automated UT Drilling tools - metal powder for hardfacing bonding DBS Halliburton Belgium 07/2002Phased Array TRL PE Stainless steel 304 L (PSI) Linde AG Belgium 08/2002Phased Array TRL PE Qualifications on 9Ni steel base welded with Inconell filler (ADM HP5/3) Statoil Belgium 08/2002Automated UT (TOFD, PE) Austenitic steel base material of 1 alternator retaining ring (Dampierre) Jeumont France 08/2002Automated UT Primary welds 4, NG and dissimilar metal welds EBL - Tihange 1 Belgium 09/2002Phased Array TRL PE Stainless steel 304 L casts reliability study EDF Belgium 10/2002Phased Array TRL PE Succesfull performance demonstration on Austenetic SS (BS and Shell Dep) Shell Belgium 10/2002Phased Array PE + TOFD Carbon steel flange of of changer Air Liquide Feluy Belgium 10/2002TOFD Inspection ISI at elevated temperatures Kemira Belgium, Tertre 10/2002Phased Array TOFD / PE Multiple Longitudinal and circumfrencial welds (thick CS) Conform CC2235-4 G&G International Belgium 10/2002Automated UT 14", 4" and 6" bimetallic weld of presuriser EBL - Tihange 2 Belgium 11/2002Phased Array TOFD / PE 1 800 meters weld 61 - 71 mm Carbon Steel Conform CC2235-3 PSI Foster Wheeler / Exxon Belgium 11/2002Phased Array TOFD / PE Multiple Longitudinal and circumfrencial welds (thick CS) Conform CC2235-3 Air Liquide Belgium 11/2002Automated PA UT Automated UT examination of surge line pressurizer Fessenheim1 EDF-GDL France 01/2003Phased Array TRL PE Inspection of 9Ni steel base welded with Inconell filler (ADM HP5/3) Linde AG Belgium 01/2003Auto UT GBL pressu Blayais 1 EDF France 02/2003Automated UT (TOFD, PE) Austenitic steel base material of 1 alternator retaining ring Jeumont France 02/2003Phased Array TOFD / PE Multiple Longitudinal and circumfrencial welds (thick CS) PSI Conform CC2235-4 Coek Belgium 02/2003TOFD Inspection Pipeline +/- 1 600 welds conform NEN 3650-2 WRK Netherlands 02/2003TOFD Validation Conform EN538 for Bureau Veritas (Rotterdam, Antwerp and Paris) AV NL Netherlands 03/2003TOFD Inspection Inspection of long seams conform RTOD - EN 538 Kersten Netherlands 03/2003TOFD Inspection Inspection of 8 vessels PSI conform RTOD - EN 538 Siemerink Netherlands 03/2003TOFD Inspection Inspection of vessel, FFP (montage) Q8 - KPE Netherlands 03/2003TOFD Inspection Inspection of vessel, PSI prefab inspection conform RTOD - EN 538 Sicon Netherlands 03/2003TOFD Validation Conform RTOD - EN538 for Lloyds - Stoomwezen Q8 - Sicon Netherlands 03/2003TOFD PSI Inspection PSI TOFD fingerprint of 168 Welds Hydro Agri Trinidad, West Indies 04/2003Automated UT (TOFD, PE) Austenitic steel base material of 2 alternator retaining rings Blayais 2 Jeumont France 05/2003TOFD ISI Inspection TOFD ISI of vessel at elevated temperatures Hydro Agri Trinidad, West Indies 05/2003TOFD on Complex Geometries Inspection of Nozzles en vessel inlets Hydro Agri Trinidad, West Indies 05/2003TOFD Multiple welds Electrabel Belgium, Rodenhuize (Gent) 05/2003Automated UT Pressurizer surge line nozzle weld Electrabel Belgium, Tihange 05/2003Automated UT (TOFD, PE) Austenitic steel base material of 2 alternator retaining rings Cordemais 5 Jeumont France 06/2003Phased Array TOFD / PE Multiple Longitudinal and circumfrencial welds (thick CS) PSI Conform CC2235-4 SIF Roermond Netherlands, Roermond 06/2003Phased Array TOFD / PE Succesfull Qualification ASME CC 2235-4 (CS up to 6" ) Lloyds Nederland Netherlands 06/2003Phased Array TOFD / PE Multiple Longitudinal and circumfrencial welds (thick CS) Conform CC2235-4 projects 52610 ABCDEFGH G&G International Belgium 07/2002Automated UT (TOFD, PE) Austenitic steel base material of 2 alternator retaining rings Chinon 1 Jeumont France 07/2003




Automated UT Automated UT examination on primary circuit welds DOEL4 Electrabel Belgium 07/2003Automated UT (TOFD, PE) Austenitic steel base material of 2 alternator retaining rings Gravelines 4 Jeumont France 08/2003Phased Array TOFD / PE Stainless steel weld inspection on Llyondell PO 11 project ABB Lummus - Heijmans Netherlands 08/2003Phased Array TOFD / PE Piping welds from Tangezchevroil project (Chevron - Fluor Daniel - GE NP) Fabricom - Nuovo Pignone - PFD Belgium 08/2003TOFD Piping welds from Tangezchevroil project (Chevron - Fluor Daniel - GE NP) Fabricom - Nuovo Pignone - PFD Belgium 08/2003Automated UT Automated UT examination of surge line pressurizer Beznau NOK Switzerland 08/2003Semi Auto UT Weld-o-lets inspection from Tangezchevroil project (Chevron - Fluor Daniel - GE NP) Fabricom - Nuovo Pignone - PFD Belgium 08/2003Automated UT (TOFD, PE) Austenitic steel base material of 2 alternator retaining rings La Maxe 1 Metz Jeumont France 09/2003Stripscan TOFD / PE Qualification conform CSW-01-N and CSW-05-E Gasunie Netherlands 09/2003Phased Array TOFD / PE Succesfull Qualification ASME CC 2235-5 on piping Chevron Belgium 10/2003TOFD Inspection Presure vessels Degussa Belgium 11/2003Automated UT 14" and 2x 6" bimetallic weld of presuriser surge line EBL - Tihange2 Belgium 11/2003Corrosion mapping 4' lines CORUS Ijmuiden Netherlands 11/2003Automated UT (TOFD, PE) Austenitic steel base material of 2 alternator retaining rings rotor 408843 Jeumont France 11/2003


tofd_cv.pdf

Documents