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2010 A U T U M N 15

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2010 A U T U M N

15

L12 1 Ni3SiNi3Si

Si TiL12

Ni,Si,Ti8.0g/cm3

300500 Nb Ni3

(Si,Ti) 5600 SUS440C

Ni3(Si,Ti)

Ni3(Si,Ti)SUS440C 80

1 L12(A3B) 2 Ni3(Si,Ti)

2

2GPa

Ni3(Si,Ti)Ni 2

VIM→ → →

Ni3(Si,Ti)

43 Al

Mo SEM

2 Mo4 Al Co Cr Mo

20%Ta 5at%

10μm

(b)(a)

10μm

3 1173K 1h (a)Al (b)MoNi3(Si,Ti) SEM

Ni3(Si,Ti)

Si Ti NiNi6

Ni 7

0 10 20 30 40 50 600

20

40

60

80

100

Me

tha

no

l co

nve

rsio

n (

%)

Reaction time (h)

793K

713K

6 Ni3(Si,Ti) 7Ni3(Si,Ti)SEM

(FSW)

0

500

1000

1500

0.2

% p

roof st

ress

(M

Pa)

Al-alloyed Co-alloyed Cr-alloyed Mo-alloyed Unalloyed

(b)

400 600 800 10000

10

20

30

40

50

60

Testing temperature (K)

Elo

ngatio

n (

%)

Al-alloyed Co-alloyed Cr-alloyed Mo-alloyed Unalloyed

(c)

4 Ni3(Si,Ti)

5 Ni3(Si,Ti)

1 600 Ni3(Si,Ti)(SUS440C)

13

600

201930

-

GP

0.2

1950

GP

1970

1990

Alfred Wilm (1869-1937))

1901

1906

- - Mg-Sn-Al

2/3

2010 9

10

10 29 13:30 16:30 309

- -

--

2

1

2

200MPa2 2

2 FeZr Fe Zr 3 Fe Zr

2000MPa

5 mm5 mm

0.1 mm

Fe基

Zr基

0.1 mm

Fe基

Zr基

0.1 mm

Fe基

Zr基

1 (a)Ni (b)Fe 2 3 Fe Zr

Ni Ti

Ni Ti-Nb-Sn

V Ti