Abrupt softening phenomenon in a shape memory CuAlNi single crystal under uniaxial compression

被引：1

作者：

Sun, L. ^{[1
]}

Huang, W. M. ^{[2
]}

机构：

[1] Shenyang Jianzhu Univ, Sch Civil Engn, Shenyang, Peoples R China

[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore, Singapore

来源：

ADVANCED MATERIALS SCIENCE AND TECHNOLOGY | 2009年 / 614卷

关键词：

Shape memory alloy; single crystal; phase transformation; softening; reorientation; uniaxial compression; CU-AL-NI; ALLOYS; TRANSFORMATION; BEHAVIOR;

D O I：

10.4028/www.scientific.net/MSF.614.181

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Abrupt softening phenomenon vas observed in a shape memory CuAlNi single crystal upon uniaxial compression. Sudden martensite variant(s) reorientation was found to be the reason behind this anomalous behavior. The significance of this finding is twofold. Oil one hand, it clearly demonstrates that the stress induced transformation call follow a sequence of the phase transformation (martensitic transformation, austenite to martensite) and then reorientation (from one martensite variant to another). On the other hand, the anomalous softening provides a good evidence for explaining the propagation of the phase transformation front.

引用

页码：181 / 185

页数：5

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