Fe-Mn-Si基记忆合金回复应力的研究  

Investigation of Recovery Stress in Fe-Mn-Si Based Shape Memory Alloys

作　　者：戴品强[1] 刘声桓[1] 

机构地区：[1]福州大学材料科学与工程系,福建福州350002

出　　处：《机械工程材料》1998年第2期15-17,共3页Materials For Mechanical Engineering

基　　金：福建省自然科学基金

摘　　要：研究了Fe－Mn－Si基形状记忆合金的回复应力与合金强度、预变形量和回复循环次数的关系。结果表明，回复应力与合金强度和形状回复率有关，但强度是主要因素。合金强度越高，回复应力越大。回复应力在前两次循环回复后明显增大，以后逐渐缓慢，趋于稳定。The effects of alloy strength, prestrain and recovery cycles on the recovery stress in FeMn-Si based shape memory alloys have been investigated. The results show that the recovery stress depends on alloy strength and shape memory effect, whereas alloy strength is a more important factor.The recovery stress increases with alloy strength increase. The recovry stress increases apparently after the first and second recovery cycIe and there after it increases slightly with further recovery cycling and trends toward stability

关 键 词：形状记忆合金 回复应力 铁-锰-硅基 

分 类 号：TG139.6[一般工业技术—材料科学与工程]