Anisotropy of transformation characteristics of Cu-base shape memory alloys

被引：43
作者：
Novak, V
Sittner, P
Zarubova, N
机构：
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1997年 / 234卷
关键词：
shape memory alloys; thermoelastic martensitic transformation; oriented single crystals; anisotropy of transformation characteristics;
D O I：
10.1016/S0921-5093(97)00175-5
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Shape memory alloy single crystals undergoing stress induced thermoelastic martensitic transformations exhibit strong anisotropy of deformation characteristics when loaded along various crystallographic axes. In the present work, CuAlNi and CuAlZnMn single crystals of various orientations were investigated by thermomechanical tension/compression tests. In particular, the orientation dependence of transformation strains and stress-temperature critical conditions for martensitic transformation were studied. Results have been summarized in stress-temperature phase diagrams which provide sufficient basis for microme- chanical modeling of Cu-based polycrystals. Experimentally measured transformation strains were found to be in reasonable agreement with predictions based on the phenomenological theory of martensite-crystallography. (C) 1997 Elsevier Science S.A.
引用
收藏
页码：414 / 417
页数：4
相关论文
共 9 条
[1]   Predicting the orientation-dependent stress-induced transformation and detwinning response of shape memory alloy single crystals [J].
Buchheit, TE ;
Wert, JA .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1996, 27 (02) :269-279
[2]  
ENTEMEYER D, 1995, J PHYS IV, V8, P233
[3]   ORIENTATION DEPENDENCE OF BETA-1-]BETA'1 STRESS-INDUCED MARTENSITIC-TRANSFORMATION IN A CU-AL-NI ALLOY [J].
HORIKAWA, H ;
ICHINOSE, S ;
MORII, K ;
MIYAZAKI, S ;
OTSUKA, K .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1988, 19 (04) :915-923
[4]  
NAKANISHI N, 1983, ARCH MECH, V35, P37
[5]   MARTENSITIC TRANSFORMATIONS IN SINGLE-CRYSTALS OF CU-AL-NI INDUCED BY TENSILE-STRESS [J].
NOVAK, V ;
MALIMANEK, J ;
ZARUBOVA, N .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 191 (1-2) :193-201
[6]  
NOVAK V, 1997, P ESOMAT 97
[7]   EXPERIMENTAL-STUDY ON THE THERMOELASTIC MARTENSITIC-TRANSFORMATION IN SHAPE-MEMORY ALLOY POLYCRYSTAL INDUCED BY COMBINED EXTERNAL FORCES [J].
SITTNER, P ;
HARA, Y ;
TOKUDA, M .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1995, 26 (11) :2923-2935
[8]   MICROMECHANICS MODELING FOR THE CONSTITUTIVE BEHAVIOR OF POLYCRYSTALLINE SHAPE MEMORY ALLOYS .1. DERIVATION OF GENERAL RELATIONS [J].
SUN, QP ;
HWANG, KC .
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1993, 41 (01) :1-17
[9]  
WOLLANTS P, 1994, PROGR MAT SCI, V37, P277
1