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℃.
出处
《热加工工艺》
CSCD
北大核心
2008年第10期74-75,共2页
Hot Working Technology
