多元微合金化铜基形状记忆合金的超弹性及超塑性性能研究  

Ultra-elasticity and Ultra-Plasticity of Multi-element micro Alloy copper based memory Alloy

作　　者：吴元康[1] 李翔[1] 

机构地区：[1]东南大学,南京210096

出　　处：《机械设计与制造工程》1998年第4期28-31,共4页Machine Design and Manufacturing Engineering

基　　金：江苏省自然科学基金!BK93044106

摘　　要：用多组无微量合金元素Ti、B、Ce、Nb和Zr细化铜锌铝形状记忆合金的晶粒，改善了合金的加工性能、力学性能和形状记忆效应，联合添加Ti、B和Ce，其伪（超）弹性应变值在250℃温度下可稳定在4.5％左右;在500～750℃的温度下具有δt=112％～200％的良好超塑性性能，展示了良好的热加工性能。By applging multi-component micro-alloy elements Ti, B, Ce, Nb and Zr to fine the grain of shape memory alloy of copper-Zinc-aluinum, that improves the machining performance mechanical Performance and the shape memorg effect of the alloy. By combined adding Ti, B, and Ce, the garnished (ultra)elastic strain may be stablized about 4. 5 % under temperature 250t it possesses good altra-plastic performance δt = 112 % -200 % under temperature 500-750t. That shows the better performance of hot processing.

关 键 词：铜基 形状记忆合金 超弹性 超塑性 微合金化 

分 类 号：TG139.6[一般工业技术—材料科学与工程]