低温回火对Cu-18A1-10Mn(at%)合金形状记忆性能的影响

稀有金属材料与工程, 2008, 37(10): 1710-1713.

低温回火对Cu-18A1-10Mn(at%)合金形状记忆性能的影响

苏雷 ^1, , 李宁 ^2, , 焦玉琴 ^3, , 何加强 ^4, , 文玉华 ^5,

1.四川大学,四川,成都,610065

2.四川大学,四川,成都,610065

3.四川大学,四川,成都,610065;青岛大学,山东,青岛,266071

4.四川大学,四川,成都,610065

5.四川大学,四川,成都,610065

基金项目: 教育部高等学校博士学科点专项科研基金(20030610093)

关键词：形状记忆合金 , Cu-Al-Mn合金 , 伪弹性 , 空位

Effect of Low Temperature Temper on Shape Memory Effect of Cu-18Al-10Mn(at%)Alloy

利用电阻法、光学显微观察和X射线衍射等方法研究了低温回火对Cu-18Al-10Mn(a%)合金形状记忆性能的影响.结果表明:合金在淬火态伪弹性占支配地位,随回火温度升高伪弹性逐渐减弱而形状记忆效应占支配地位.其原因是低温回火使得过饱和淬火空位浓度降低、对母相的钉扎作用减弱、有利于母相向马氏体相转变所致.

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材料期刊网

低温回火对Cu-18A1-10Mn(at%)合金形状记忆性能的影响

Effect of Low Temperature Temper on Shape Memory Effect of Cu-18Al-10Mn(at%)Alloy

参考文献