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CuZnAl记忆合金成分对记忆性能的影响

The Influence of Composition on Memory Properties in CuZnAl Shape Memory Alloy

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【作者】 张丽萍李福全张恩涛邓肇豪

【Author】 Zhang Liping Li Fuguan Zhang Entao Deng Zhaohao (Research Center of Foundry Engineering, Dalian University of Technology)

【机构】 大连理工大学大连理工大学

【摘要】 通过大量合金的熔炼试验,探索出控制合金成分的理想工艺,建立马氏体转变温度M_α与Zn、Al含量的数学关系力M_S(℃)=2142.56-58.53 Zn-158.10 Al,Wt%。由此提出记忆锌当量的概念及CuZnAl系记忆合金成分设计的原则,并进一步研究了记忆锌当量对合金形状恢复率、执滞及马氏体可逆转变量等记忆性能的影响。

【Abstract】 An ideal melting process to stabilize the composition of CuZnAl shape memory alloy (SMA) is suggested through a great deal of experiments. The mathematical relation between M_s and composition is given as: M_s (℃)=2142.56-58.53 Zn (wt% ) - 158.10 Al (wt%). According to this equation, the concept of Zn memory equivalent is put forward and the composition design becomes possible. The influence of Zn memory equivalent on the shape recovery ratio, the thermal hysteresis and the relative amount of convertible thermoelastic transformation of martenstte were also studied.

  • 【文献出处】 机械工程材料 ,Materials For Mechanical Engineering , 编辑部邮箱 ,1990年02期
  • 【被引频次】18
  • 【下载频次】68
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