jaeri-research 96-020...experimental procedure 1 2. 1 specimen materials • 1 2. 2 tensile test 1...

JAERI-Research96-020

JAERI-Research—96-020

JP9606154

Japan Atomic Energy Research Institute

.' •'••••

JAERI-Research 96-020

U 7 5 1 MJ -

(1996^ 3

V*? h D —:

t) ^ ^ Sfl^atn:*^ L < tt

: T319-11 35«!RS|5I5l1


Effect of Crystal Anisotropy on Mechanical Properties of Refractory Metals and

Alloys with cph Type Crystal Structure

Akira TOHYAMA, Kiyoshi KIUCHI and Masahiko KIKUCHI

Department of Material Science and Engineering

Tokai Research Establishment

Japan Atomic Energy Research Institute

Tokai-mura, Naka-gun, Ibaraki-ken

(Received March 1, 1996)

Refractory metals like zirconium (Zr) and titanium (Ti) have the excellent corrosion

resistance in highly oxidizing environments like reprocessing n i t r i c acid. However,

there are few experiences for practical use as structural materials of these materials.

Mechanical properties of these materials, so the tensile test and the impact test of

zirconium, titanium, and the i r al loys were examined with a function of t e s t ing

temperature. Both 0.2% proof stress and ultimate tensile strength of zirconium decrease

with t es t ing temperature, i t is suggested to play an important role of the low

temperature creep on the mechanical deformation. The crystallographic anisotropy appears

clearly in the impact value of zirconium, i t has a very low impact value along the

crystal orientation of the cph s l ip planes like (1010). This property is not seen in

titanium which has the same crystal structure. It is necessary to consider zirconium

showing a remarkable decrease in the deformation resistance along such specific crystal

planes.

Keywords: Refractory Metal, Anisotropy, Crystal Structure, Crystal Orientation

This research is sponsored by the Science & Technology Agency under contact of the "Development of

material technologies applied for reprocessing plant".


1. II I 12.

2.

2. 2 3l3ffit?& 1

2. 3 ®$I3& 1

3. ^ ^ i # ^ 2

3. 1 3l3g£U&&JH 2

3. 2 Z r £ Z r & £ 0 « § » £ J | 2

3. 3 Ti£Ti&£©$j! i l3»Jj l 3

4 *§ ife 4It 3$ 4

4

Contents

1. Introduction 1

2. Experimental Procedure 1

2. 1 Specimen Materials • 1

2. 2 Tensile Test 1

2. 3 Impact Test 1

3. Results and Discussions 2

3. 1 Tensile Test 2

3. 2 Impact Value Temperature Dependence of Zr and Zr Alloy 2

3. 3 Impact Value Temperature Dependence of Ti and Ti Alloy 3

4. Conclusions ;•••• 4

Acknowledgments 4

References 4


u( h e p ) W

Lfc800-900 °C

2>o ttz,

, I o o°c

(TG S C C)

r fcZ i ^T i

2. n m 15

r , MT i , Table 1 icfk

S:JfiLfc

figure 1

ti,

i t 0 ^^EMtcii , # f t l 0 t o nJi, g f i ~ 3 0 E

^ J I SGO 5 6 1 VWffl

fa £#J ^ ffi Ltzi S - l 0

2.3

Z 2 2 0 2

(CVN)

5 mm), J IS

Figure2 tci l^l t1!O 13

- l -


fc

&&0 l « i > J I S Z 2 2 4 2 O

, - 1 0 0 °C~ 3 0 0 "C^ftifflT- 5 0 °C&^ L 1 0 0

Ji, Mx*^¥-£MUM"IfffllKXfflfeft

Z rKIMJLT. Figure 3 ^0 . tt^, Figure 4

L /c

Figure

(:, Z

Figures tc!') tB c£

(1100)

c (0001) ^ (1011)

Z r

< , f 0 iCtr4 0 J / c m2, 10 0 t t4

5 J / c m

-1 2 7 . 5 J / c m2 t ^T-

19

t tz,

Zr-15TH±> &MZ vtZttj:*), L, Ĉ F Ifi] WiS^ ̂ J ^^j#fi^fI{iM*|nl*t t & ^ 0 °C"C- 2 5 J / c m21 (£ <0 ' C t U O O J / c m 2Ji

t®£


^i3^x- 5

hzt

L, c xra i:Zr-15Ti

i ( 0 , N,

3 . 3 T i t T i -

t±|WJ V$ £M Z r

^ • 9 , L,

i P t * ^ O°C~1 O

to

Ti-5Tati. |JSOZr-

U 0

i T i X •) fe f&T L f ^^>

0 0 J / c

Photo3 ic&^T i

T i t

Ti-5Ta fc 1 0 0 v> <

b £Z.

t o Figure 10,11 £&JiT i ,

(ilZ r Z r

fflth

- 3 -


4.

ilZr

(2)

(3 ) ^ Z r

^ K .t

( 1 0 1 0 ) £ ( 1 1 2 0 )

-o£%z. h 1X&o H Z r

&tfM < , i\&


Table 1 The chemical composition of the tested specimen. T

Zr

Zr-15Ti

Ti

Ti-5Ta

Zr

99.7*

bal.

Ti

15.31

bal.

bal.

Ta

5.1

Hf

0.07

0.008

1.001

Fe

0.0638

0.047

0.017

0.020

Cr

0.007

0.014

C

0.01

0.003

0.005

0

0.139

0.072

0.044

0.08

N

0.003

O.OOOS

0.0054

0.0031

H

0.0008

0.0005

0.0003

0.0009

*Zr+Hf

- 5 -


B

COBCD

oCDQ .CO

4 _ ,

toCD

•J—1

ocd

HIP

•*—1

' ( ,

o^-CD

^»

O

cd

CD

. f iO

co'̂ 2oCDu.

T D

4 ^

DO

boB

iH4-1

oCDOBCD

CD

E'o

•4.J

oCD

"5boB

• •—4

• H

o>-•

CD

- • - »

O

bo

o00

I

\o

oCO

inLO

co

c

VIBCDE

••—1

OCDQ .

COCD

CD

CO

cCD

O

&

• - *

^ »

u

COSCD

J 3

O1 »

oCDt-i

1 3

4 - >

o

bo

• cH

o

oCDoBCD

CD' | i

U—>

co

oCD*-"

0 0B

" '

o

CD

xz

bo

- 6 -


-

- •

-

t t

r 1

• t

• i

ll

1 1 ^

e

• i i

1

•4

•4

• t i t

<

•

4

i |

o

•4i

0

O <

<

•

ei i 1 i

<

0

e

i * • I

o

t

• ! • '

HI

o

<

o<

o1 1 1 1

oLD

<

<, 1

1 '

R.A

. L

•

i i

1 i

i

R.A

. C

-

-

-

-

i t i i i t i i

oinCM

ooCM

- o

om

§2Q

03 3

03CO I - .

••* COCO - G

O3

•+-> T3

co cd

=3 E•*-> Ocd — HCO

aeCO

o

o03

CO

CO

iS

cdMC

oCO

_ ^

cd

o* • '

CO

co

3

Coou,N

O

CO

cdn, i

o

oCO

oto oCM bo

uo|pnpeu 'uo!

i • • ' • i • • • • i • ' • ' r ^ 1 > • i • i • • | • • • ' i ' • • ' | • • ' ^ r

O < -4 •

->

CO

IX

CMO

•

o

'oP

.S.

CMO Z)

O

o

HZ)

<

0 < -4 ©

O < -4 *

O

JAERl-Research 96-020

CD

c


.' ' '

-

1 1

1 1

11

•

L 1 1 1 1

TT

JIT

TT

"I~I

1

1

-

•I

ll

•

I 1 1 1 1

• , 1 1

1 '4

O

N

0

| ,

115

Ti

L

N

•4

1 1

<

C

15Ti

C

N

<

• i i

o

o

1 1 1

e

•4

o

o

1 , 1 1 1


.' ' '1 1 1

1 _1_ 1

-

-LI

_-

—

: o- o: o---

--LJ i i

1 ' ' 1 1

B

oo

o0

oB <

OO

o.

o

o

0

B

taB

•

•O

H B

1 , , i

D

SO

°oB

B * D

B «D

B D ••n •

• ^4 j Q

••

O f l

DD » •

t 1 i i i 1 i i i 1 i i i

-J O

P P• D

i i i

-J

E - 1

CD C

-i-i C

CD -4-i O

-4-> a .

ocu

CU

b6

O t -• - < 03

Q . CD

CD -"-J

oo

oow

-

1

-

'.

_

n iD •

- DB

-

- a: DB- n: D

L D--

•

•

1 '

m

1 •

•

D

<

D

B

a

4GB

• B

B

i i i

• i | i

OOo

oo

o• 0

0Bm B

, , 1 ,

oo

«>

B

O

o

o

o

BDa1

•

1 i

_,

F

B

ai i

o

F

•

O

-

_

-J O

up in

F P

• O

:

-

-

—

-

I-II:

--

-• i i i i . . '

ooCM

.O

o©

CDCL

ECD

- o

oo

ooCM

oo

C3

O C3

CD L O

n •->

C3

CD CQ. «

CD E•4-1 3

bo c

o

oCD

CD

CD

OO

bo

C L ,

CD

cd

impa

ct

- 1 0 -


CD

CO

CD00CD

Q .CD

• f^CO

aa>

-4—1

.5CDC

• * - <i—H

o>

o

o• t—1

"Scu>

• t—1

03

cu

co

o

• 1-4

•o>̂cdi -

X>

•a031—

CO

£E

rt

oo oc^ oCO ol> ovo om o oCO oCMC5

M

- 1 1 -


ooo

- t o oi i i

CO(DC

C

13

O

- ame

a

ini

E ~ '

o

- 1 2 -


wmmmsm

"ace

suri

CD

3

frac

i

o

•apr

Io

o.sCO

oCD

3

«s

ing

tem

per

4 - 1

CD4-1

O

:fec

t

pa

oo

4-1*

CD

mpa

ct

Q .

CD

CD

n i

[urn

;ir

coni

- 1 3 -


COCDo

3CO

oCO

ato

rtDOo

• « _ »

oa

CC/3 CO

o

3 E

CD O .Q . t -e rs

M CD

0 0 UHCU CD

O LTDCD i—I

u - |u— I .

3

CN1

do

Q-

- 1 4 -


PO

PCD

O

:aces

surf

fractu

o

•aphs

boo

phol

GO

a.oCD

;empera1

ing f

;est

rfec

t of

to

CO

d

Phol

-4—»

CD

impact

Charpy

the

cu

tani

um

-4—1

- 1 5 -


toCDO

CO

CD«-,=3

ou.

t 4 - l

.a. Q.E UCD Cd

COcu u4-1 CD

o n)

O E-CD IO

O4—>

o

- 1 6 -

*

11ftB*

ft•)t

T-5:

i

lit

sit

litRSIMi

n

anft

MIS.

PiPi

/ -* a i

r y>T IV

•h y

7 '>'X T 7

fah

' 7

f

T

T

«/

TyIV

vll

y

y

mkgsAK

molcd

radsr

Hi

IE

Jit

3.%lVif-, \.

:i: =

vti ','•ii(>y

•iii

e

IE•At. .*>

M . ft

\

BB

m

u2

tilia

7514(2)

ftf

jaeri-research 96-020...experimental procedure 1 2. 1 specimen materials • 1 2. 2 tensile test 1...

Documents