Deformation Behavior and microstructures of Ti-50at%Ni and Ti-40Ni-10Cu(at%) SMA melt-spun ribbons

被引：0

作者：

Khantachawana, A

Yamazaki, K

Miyazaki, S

机构：

来源：

PRICM 4: FORTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, VOLS I AND II | 2001年

关键词：

shape memory alloy; melt-spun ribbon; deformation behavior; microstructure;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ti-Ni shape memory alloy (SMA) thin films are suitable for microactuators due to their large shape recovery strain and force. In this study, deformation behavior and microstructures of rapidly solidified Ti-50 at%Ni and Ti-40Ni-10Cu(at%) SMA ribbons were investigated. It was found for the Ti-50at%Ni as-spun ribbon that the maximum shape recovery strain and the critical stress for slip were 6.5% and 600 MPa, respectively. On the other hand, the Ti-40Ni-10Cu(at%) as-spun ribbon was amorphous and did not show shape memory effect. The specimen seems to be brittle when heat-treatment temperature is below 1073K. However, the transformation strain was small comparing with that of Ti-Ni binary ribbon cause from the difference of crystal structure of martensite phase. It was also found that transformation and shape memory behavior appeared by heat treatment.

引用

页码：1537 / 1540

页数：4

共 13 条

[1] STRUCTURE OF NITICU SHAPE MEMORY ALLOYS [J].

BRICKNELL, RH ;

MELTON, KN ;

MERCIER, O .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1979, 10 (06) :693-697

[2] ELEVATION OF PREMARTENSITIC TRANSFORMATION TEMPERATURE BY (NI+CU)2TI PRECIPITATION IN SPUTTERED NI(1-X)TICU(X) THIN-FILMS [J].

CHANG, L ;

GRUMMON, DS .

SCRIPTA METALLURGICA ET MATERIALIA, 1991, 25 (09) :2079-2084

[3] THERMOMECHANICAL PHASE-TRANSFORMATION OF RAPIDLY QUENCHED TI-NI-CU RIBBONS [J].

FURUYA, Y ;

MATSUMOTO, M ;

KIMURA, H ;

AOKI, K ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1990, 31 (06) :504-508

[4]

KHANTACHAWANA A, IN PRESS

[5]

KHANTACHAWANA A, 2001, T MRSJ, V26, P193

[6] Shape memory microvalves based on thin films or rolled sheets [J].

Kohl, M ;

Dittmann, D ;

Quandt, E ;

Winzek, B ;

Miyazaki, S ;

Allen, DM .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 273 :784-788

[7]

KOHL M, 1996, P 5 INT C NEW ACT AC, P367

[8] SUBSTITUTION OF CU FOR NI IN NITI SHAPE MEMORY ALLOYS [J].

MERCIER, O ;

MELTON, KN .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1979, 10 (03) :387-389

[9] Martensitic transformation and shape memory behavior in sputter-deposited TiNi-base thin films [J].

Miyazaki, S ;

Ishida, A .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 273 :106-133

[10] DEVELOPMENT OF SHAPE MEMORY ALLOYS [J].

MIYAZAKI, S ;

OTSUKA, K .

ISIJ INTERNATIONAL, 1989, 29 (05) :353-377

← 1 2 →