Fe-Mn-Si-Cr-Ni-C形状记忆合金回复应力的研究  

The Study of the Recovery Stress on Fe-Mn-Si-Cr-Ni-C Shape Memory Alloy

作　　者：李宁[1] 文玉华[1] 陈孟诗 李平全[2] 刘应来 马颖丽[2] 

机构地区：[1]四川联合大学金属材料系,成都610065 [2]西安石油管材研究所,西安710061

出　　处：《功能材料》1998年第6期648-650,共3页Journal of Functional Materials

摘　　要：研究了预应变量、加热和冷却工艺对FeMn－Si-Cr－Ni－C形状记忆合金回复应力的影响。结果表明，当预应变量小于3％～4％时，随应变量的增加，回复应力增加。大于3％～4％后，则下降。同一温度下，冷却过程的回复应力大于加热过程的回复应力。停止加热时的温度越高，冷却过程中的回复应力越大。The effect of the pre-strain and technique of heating and cooing on the recovery stress of Fe-Mn-Si-CrNi-C shape memory alloy has been studied. The results show that the recovery stress increases with increasing of thepre-strain when it is less than 3% ~ 4%. It is the opposite when prestrain is higher that 3% ~ 4%. At the sametemperature, the recovery stress in the cooling process is greater than that in the heating process. The higher the temperature of cooling is, the greater the recovery stress is.

关 键 词：形状记忆合金 预应变量 回复应力 管接头 

分 类 号：TG139.6[一般工业技术—材料科学与工程] U173.2[金属学及工艺—合金]