Transformation behavior and shape memory characteristics of Ti-(45-x)Ni-5Cu-xV alloys

被引：0

作者：

Choi, Ju-Young ^{[1
]}

Choi, Eunsoo ^{[2
]}

Cho, Baik-Soon ^{[3
]}

Chung, Young-Soo ^{[4
]}

Nam, Tae-Hyun ^{[1
]}

机构：

[1] Gyeongsang Natl Univ, Div Adv Mat Engn I Cube & ERI, 900 Gajwa Dong, Jinju 660701, Gyeongnam, South Korea

[2] Hongik Univ, Dept Civil Engn, Seoul, South Korea

[3] Inje Univ, Dept Civil Engn, Seoul, South Korea

[4] Chung Ang Univ, Dept Civil Engn, Seoul, South Korea

来源：

INTERNATIONAL CONFERENCE ON SMART MATERIALS AND NANOTECHNOLOGY IN ENGINEERING, PTS 1-3 | 2007年 / 6423卷

关键词：

Ti-Ni-Cu-V alloys; B19; martensite; transformation temperature; hardening; superelasticity;

D O I：

10.1117/12.780042

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Transformation behavior, shape memory characteristrics and superelasticity, of Ti-(45-x)Ni-5Cu-xV(at%)(x=0.5-2.0) alloys were investigated. The B2-B19-B19' transformation occurs when V content was more than 1.0 at%, while the B2-B19' transformation occurred when V content was 0.5 at% in solution treated specimens. However, the B2-B19 and B19-B19' transformations were not separated clearly in the thermo-mechanically treated specimens. A temperature gap between Ms'(the B2-B19 transformation start temperature) and Ms(the B19-B19' transformation start temperature) increased from 8 K to 22 K with increasing V content from 1.0 at% to 2.0 at% in solution treated specimens. One-stage elongation associated with the B2-B19' transformation occurred in a Ti-44.5Ni-5.0Cu-0.5V alloy, while two-stage elongation associated with the B2-B19-B19' transformation occurred in a Ti-43.0Ni-5.0Cu-2.0V alloy. The superelastic recovery ratio increased from 65.0% to 86.1% with increasing V content from 0.5% to 2.0% in solution treated specimens. The thermo-mechanically treated specimens showed the superelastic recovery ratio more than 95%.

引用

页数：8

共 10 条

[1] [Anonymous], 1982, J PHYS S12
[2] Transformation behavior and mechanical properties of a Ti-43.0Ni-5.0Cu-2.0Fe (at.%) alloy
Cho, GB
Kim, TY
Nam, TH
Yu, CA
[J]. SCRIPTA MATERIALIA, 2005, 53 (03) : 281 - 285
[3] Electronic structure and stability of intermetallic compounds in the Ti-Ni System
Fukuda, T
Kakeshita, T
Houjoh, H
Shiraishi, S
Saburi, T
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 273 : 166 - 169
[4] A study of TiNiV ternary shape memory alloys
Lin, HC
Lin, KM
Chang, SK
Lin, CS
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 284 (1-2) : 213 - 217
[5] Phase transformation Behavior and shape memory characteristics of Ti-Ni-Cu-Mo alloys
Nam, TH
Noh, JP
Hur, SG
Kim, JS
Kang, SB
[J]. MATERIALS TRANSACTIONS, 2002, 43 (05) : 802 - 808
[6] SHAPE MEMORY CHARACTERISTICS ASSOCIATED WITH THE B2-REVERSIBLE-B19 AND B19-REVERSIBLE-B19' TRANSFORMATIONS IN A TI-40NI-10CU (AT-PERCENT) ALLOY
NAM, TH
SABURI, T
KAWAMURA, Y
SHIMIZU, K
[J]. MATERIALS TRANSACTIONS JIM, 1990, 31 (04): : 262 - 269
[7] NAM TH, 1991, MATER T JIM, V32, P814
[8] Structure and properties of amorphous and nanocrystalline NiTi prepared by severe plastic deformation and annealing
Sergueeva, AV
Song, C
Valiev, RZ
Mukherjee, AK
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 339 (1-2): : 159 - 165
[9] ELECTRON-MICROSCOPY STUDIES OF MARTENSITIC TRANSFORMATIONS IN TI50NI50-XCUX ALLOYS .1. COMPOSITIONAL DEPENDENCE OF 1/3 REFLECTIONS FROM THE MATRIX PHASE
TADAKI, T
WAYMAN, CM
[J]. METALLOGRAPHY, 1982, 15 (03): : 233 - 245
[10] The three-stage B2-R-B 19-B19′ and shape memory characteristics in Ti-Ni-Cu-Fe alloys
Yu, Cheol-am
Cho, Gyu-bong
Kim, Tae-yeon
Lee, Yun-jung
Nam, Tae-hyun
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 438 : 500 - 503

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