近等原子比NiTi形状记忆合金的超弹性^①

来源期刊：中国有色金属学报1996年第4期

论文作者：黄兵民 王永前 程建霞 赵连城

文章页码：139 - 142

关键词：形状记忆合金； 相变超弹性； NiTi形状记忆合金

Key words：shape memory alloy;　pseudoelasticity;　NiTi shape memory alloy

摘    要：研究了冷拔量、热处理}工艺参数对Ti-49.8%Ni合金丝材的超弹性的影响。结果表明不同冷拔量、不同退火工艺处理的丝材获得完全超弹性的温度区间、超弹性特性都不相同，获得最大超弹性应变量的处理的工艺为冷拔星39%、退火温度723 K、保温时间30 min。

Abstract: Influence of cold drawing and annealing treatments upon pseudoelasticity of NiTi wire with 49.8% Ni has been examined. It was shown that complete pseudoelasticity and different pseudoelastic characteristics were observed over a temperature range up to 45 K under varying cold drawing and annealing conditions. Excellent pseudoelasticity can be obtained in Ti-49.8%Ni wire annealed at 723 K for 30 min after 39% cold drawing reduction.