一种新型Fe-Mn-Si-Ni系形状记忆合金的研究  

A New Type of Fe-Mn-Si-Ni Shape Memory Alloy

作　　者：王永前[1] 杨建华[1] 赵连成[1] 

机构地区：[1]哈尔滨工业大学

出　　处：《材料科学与工艺》1993年第3期12-17,共6页Materials Science and Technology

摘　　要：本文采用电镜和X射线衍射分析研究了Fe-25.38Mn-3.47Si-2.98Ni合金的fcc(γ)→hcp(ε)马氏体相变;系统考察了形变温度,形变量等参数对形状记忆效应的影响。结果表明,试验合金在热轧状态于77-300K温度范围内变形,均能呈现良好的形状记忆效应。其微观机制与应力诱发γ→ε马氏体相变有关。This paper deals with fcc(γ)→hcp(ε) martensitic transformation and shape memory effect in an Fe-25.38Mn-3.47Si-2.98Ni alloy. The influence of deformation temperature and strain on shape memory effect has been examined. It was shown that a good shape memory effect, associated with stress-induced γ→ε transformation, can be obtained over a wide temperature range of 77-300K.

关 键 词：马氏体 相变 合金 形状记忆合金 

分 类 号：TG139.6[一般工业技术—材料科学与工程]