热处理工艺对形状记忆合金Cu-Zn-Al性能的影响  

Influence of Heat Treatment Process on Properties of Cu-Zn-Al Shape Memory Alloy

作　　者：冯小平[1] 

机构地区：[1]西华大学材料科学与工程学院,四川成都610039

出　　处：《热加工工艺》2008年第10期74-75,共2页Hot Working Technology

摘　　要：设计了成分为70.1Cu-26.4Zn-3.5A1(wt%)的Cu基形状记忆合金并在合金中添加微量元素Ti、B,系统研究了Cu基形状记忆合金的制备方法及形状记忆效应与热处理工艺之间的关系。实验结果表明,成分为70.1Cu-26.4Zn-3.5A1(wt%)的合金在高温直接淬火时发生马氏体相变,马氏体形态为板条状,亚结构为堆垛层错。合金回复率随淬火温度的增加先升高后降低,在850℃时硬度较高。The composition of 70.1Cu-26.4 Zn-3.5Al （wt%） was designed and the finer grains in the alloy were obtain by adding elements of Ti and B. The relationship between the shape memory effect and the heat treatment of Cu-based shape memory alloy was studied. The results show that martensite is formed when quenched at higher temperature and the microstructure of plate-like martensite consists of stacking faults. The shape memory effect of the alloy increases with the increase of quenching temperature, and then decreases when temperature is above 850℃.

关 键 词：形状记忆合金 马氏体相 CU-ZN-AL合金 

分 类 号：TG139.6[一般工业技术—材料科学与工程]