Effects of heat treatment and ECAE process on transformation behaviors of TiNi shape memory alloy

被引：42
作者：
Li, ZH [1 ]
Cheng, XH [1 ]
Shangguan, QQ [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200030, Peoples R China
来源：
MATERIALS LETTERS | 2005年 / 59卷 / 06期
基金：
中国国家自然科学基金;
关键词：
TiNi shape memory alloy; equal-channel angular extrusion (ECAE); martensitic transformation;
D O I：
10.1016/j.matlet.2004.08.039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effects of heat treatment and high-temperature equal-channel angular extrusion (ECAE) process on transformation behaviors of Ti-50.3at.%Ni shape memory alloy (SMA) were investigated by differential scanning calorimeter (DSC) measurements. The martensitic transformation start temperature of TiNi alloy decreased sharply after high-temperature ECAE processes, then rapidly rose back after the specimen annealing at 773 K for 2 h. Reasons for the changes of phase transformation behaviors have been discussed. (C) 2004 Elsevier B.V All rights reserved.
引用
收藏
页码：705 / 709
页数：5
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