淬火温度对冷拉态Fe-18Mn-5Si-8Cr-4Ni形状记忆合金回复应力的影响  

Effect of the Quenching Temperature on the Shape Recovery Stress of Fe-18Mn-5Si-8Cr-4Ni Shape Memory Alloy as Cold-Drawing

作　　者：文玉华[1] 李宁[1] 陈孟诗[1] 涂铭旌[1] 李平全[2] 刘迎来[2] 马颖丽[2] 

机构地区：[1]四川大学材料成形与控制工程系,四川成都610065 [2]西安石油管材研究所,陕西西安710065

出　　处：《功能材料》1999年第6期620-621,共2页Journal of Functional Materials

基　　金：四川联合大学青年基金

摘　　要：研究了淬火温度对Ｆｅ － １８ Ｍｎ － ５Ｓｉ － ８Ｃｒ － ４Ｎｉ 记忆合金回复应力的影响。结果表明：合金经变形后加热时产生的最大回复应力σｈ 和加热后冷却到室温时的回复应力σｃ 都随淬火温度的升高而增加，在６５０ ℃达到最大值；随后随淬火温度的进一步升高而快速下降，但是σｃ 下降的程度要比σｈ 大得多；当淬火温度高于８５０ ℃后，淬火温度的进一步升高对它们几乎没有影响；任一淬火温度下，加热后冷却到室温时的回复应力 σｃ都远大于加热时产生的最大回复应力σｈ。The effect of quenching temperature on the recovery stress of Fe-18Mn-5Si-8Cr-4Ni shape memory alloy has been studied.The results showed that both the meximum recovery stress σ h in heating and the recovery stress σ c at room temperature after heating increased as quenching temperature increased,both σ h and σ c reached maximum at 650℃,and then decreased rapidly with the further increase in quenching temperature,but the descent degree of σ c was far bigger than that of σ h;When the quenching temperature wsa higher than 850℃,the further increase in quenching temperature had little effect on them;At random quenching temperature,σ c was far bigger than σ h.

关 键 词：形状记忆合金 淬火 回复应力 淬火温度 

分 类 号：TG139.6[一般工业技术—材料科学与工程]