Stress-induced martensitic transformation of a NiTi alloy in isothermal shear, tension and compression

被引：242

作者：

Orgeas, L ^{[1
]}

Favier, D ^{[1
]}

机构：

[1] Univ Grenoble 1, Inst Natl Polytech Grenoble, Lab Sols Solides Struct, CNRS,UMR 5521, F-38041 Grenoble 09, France

来源：

ACTA MATERIALIA | 1998年 / 46卷 / 15期

关键词：

D O I：

10.1016/S1359-6454(98)00167-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The thermomechanical behaviour of stress-induced martensitic transformation in an equiatomic NiTi alloy was investigated with respect to different deformation modes including uniaxial tension, compression and shear of plate specimens at different temperatures above the M-s temperature. Results showed that loading conditions have significant influences on the deformation behaviour of the alloy. In particular, deformation behaviour was observed to be asymmetric in tension and in compression. The physical origins of such an asymmetry are explored. Comparison among the results obtained from the tension, compression and shear tests disproves the use of classical Von Mises equivalent in the modelling of the three-dimensional behaviour of martensitic transformation in this alloy. Based on this analysis, another criterion for yielding, which involves the third stress invariant, is therefore suggested. (C) 1998 Acta Metallurgica Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：5579 / 5591

页数：13

共 48 条

[1] ON THE TENSILE AND TORSIONAL PROPERTIES OF PSEUDOELASTIC NITI [J].