On the origin of Luders-like deformation of NiTi shape memory alloys

被引：184
|
作者：
Sittner, P
Liu, Y
Novak, V
机构：
[1] Acad Sci Czech Republ, Inst Phys, Prague 18221, Czech Republic
[2] Univ Western Australia, Sch Mech Engn, Crawley, WA 6009, Australia
来源：
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS | 2005年 / 53卷 / 08期
关键词：
martensitic phase transitions; material hardening; micromechanical approach; shear band; texture;
D O I：
10.1016/j.jmps.2005.03.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Polycrystalline NiTi shape memory alloys deformed in tension tend to exhibit localization and propagation of deformation in macroscopic shear bands. The propagation of the deformation bands is characterized by a plateau-type stress-strain curve. Such behavior has been reported only for NiTi alloys and only in tension. The reason for this behavior is still unclear although different hypotheses have been proposed in the literature. This article briefly summarizes relevant experimental evidences and offers an explanation based on micromechanics modelling of pseudoelasticity of polycrystalline NiTi. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1719 / 1746
页数：28
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