Effects of electropulsing treatment on mechanical properties in Ti rich TiNi shape memory alloy

被引：9
|
作者：
Cao, W. H. [1 ]
Zhang, J. L. [1 ]
Shek, C. H. [1 ]
机构：
[1] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon Tong, Hong Kong, Peoples R China
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2013年 / 29卷 / 09期
关键词：
TiNi alloy; Electropulsing treatment; Microstructure; Phase transformation; ELECTRIC-CURRENT PULSES; MARTENSITIC-TRANSFORMATION; HEAT-TREATMENT; COLD WORK; NI ALLOY; RECRYSTALLIZATION; COPPER; DEFORMATION;
D O I：
10.1179/1743284713Y.0000000264
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of electropulsing treatment on thermomechanical behaviour in terms of transformation temperatures and mechanical properties of a cold worked Ti rich TiNi shape memory alloy was studied. The results showed that the transformation temperatures increase with increasing current intensity. The superelasticity of the alloy is improved after the electropulsing treatment, and the hardness of the alloy decreased with increasing current intensity. The microstructure of the alloy showed that the above changes can be attributed to the decreasing dislocation density due to the current pulses.
引用
收藏
页码：1135 / 1138
页数：4
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