合金成分对Cu-Zn-Al形状记忆合金相变性能的影响  

Effect of Alloy Composition on Phase Transition Properties of Cu-Zn-Al Shape Memory Alloy

作　　者：柳月静[1] 陈忠家[1] 刘晓燕[1] 黄丹彤[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,安徽合肥230009

出　　处：《热加工工艺》2011年第14期14-16,共3页Hot Working Technology

基　　金：安徽省科技计划项目(09020203073)

摘　　要：分别对不含Zr、含0.1Zr和0.2Zr(wt%)的三种合金进行显微组织观察,回复率测试,相变温度测试以及X射线衍射分析等。结果表明,Zr能起到细化晶粒的作用;Zr的加入可以降低合金的相变温度;同时,在一定范围内,Zr的加入能增大合金的记忆回复率,但当超过某一值时,回复率反而减小;三种合金在850℃固溶后,仍会残留少部分母相。The influences of Zr on the microstructure and properties of Cu-Zn-Al alloy with three different composition（no Zr,0.1Zr and 0.2Zr（wt%）） were studied.The experiments of microstructure,recovery rate,phase transition temperature and X-ray diffraction analysis were carried out.The results show that Zr can refine the grain and reduce the phase transition temperature.In a certain range,Zr can increase the recovery rate;but when it reaches a certain content,the recovery rate decreases again.Under the solution treatment of 850 ℃,there are a few remained parent phases.

关 键 词：形状记忆效应 CU-ZN-AL ZR 回复率 相变温度 

分 类 号：TG139.6[一般工业技术—材料科学与工程]