The influence of Co addition on phase transformation behavior and mechanical properties of TiNi alloys

被引：30

作者：

Jing Rui-rui ^{[1
]}

Liu Fu-shun ^{[1
]}

机构：

[1] Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

CHINESE JOURNAL OF AERONAUTICS | 2007年 / 20卷 / 02期

关键词：

TiNiCo; shape memory alloy; martensite transformation; mechanical property; SHAPE-MEMORY ALLOYS;

D O I：

10.1016/S1000-9361(07)60024-7

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The influences of Co-addition on phase transformation behavior and mechanical properties of TiNi alloys were investigated. Results indicate that, as a substitute for Ni, Co added to TiNi alloys can dramatically decrease the martensite transformation temperature, and R phase transformation and martensite transformation are accordingly separated. When Co-content reach 10 at.%, the martensite transformation temperature is lower than that of liquid nitrogen. During deformation at room temperature, Ti50Ni48Co2 alloy exhibits good ductility with a lower stress plateau caused by stress-induced martensite and martensite reorientation.

引用

页码：153 / 156

页数：4

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