热循环训练对FeMnSiCrNi合金记忆效应的影响  

Influence of thermal - mechanical repeated training on shape memory effect of FeMnSiCrNi alloy

作　　者：孙国光[1] 张玉新[1] 刘文西[1] 陈金铭[1] 

机构地区：[1]天津大学材料学院,天津300072

出　　处：《兵器材料科学与工程》2005年第2期38-40,共3页Ordnance Material Science and Engineering

摘　　要：研究了多次热机械训练对Fe14Mn5si12Cr7Ni合金形状记忆效应的影响。研究结果表明:多次训练以及适当的热处理制度可以提高合金中ε马氏体的含量,而ε马氏体含量的增加对于提高合金的形状记忆效应有明显的效果;训练2-4次,合金的形状记忆效应可大幅度提高;但是继续增加训练次数,合金的形状记忆效应则基本保持不变。The influence of thermal - mechanical repeated training on shape memory effect of FeMnSiCrNi alloy has been studied in this paper. The results showed that the SME of alloys can be remarkably improved by increasing training times and annealing at proper temperature, but the SME can not be improved further after the alloy was trained 2 - 4 times.

关 键 词：形状记忆效应 NI合金 马氏体 热循环 热处理制度 幅度 增加 影响 保持 研究结果 

分 类 号：TG139.6[一般工业技术—材料科学与工程] TG146.11[金属学及工艺—合金]