| Cu-Zn-Al合金热弹性马氏体稳定化及单向记忆寿命估计 |
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| 引用本文： | 汪明朴,刘锦文,王峰.Cu-Zn-Al合金热弹性马氏体稳定化及单向记忆寿命估计[J].中南大学学报(自然科学版),1988(2). |
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| 作者姓名： | 汪明朴 刘锦文 王峰 |
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| 作者单位： | 中南工业大学，中南工业大学，长岭炼油厂 |
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| 摘 要： | 本文研究了Cu-Zn-Al合金热弹性马氏体稳定化问题。实验表明,不论直接淬火或分级淬火的合金,当其在马氏体状态时效时,都会发生热弹性马氏体稳定化现象,但后者稳定化速率大为减小,其激活能远大于前者。这一结果可用来估计单向记忆寿命。此外,本文还从结构上研究了马氏体稳定化机理,认为再有序化和空位钉扎是影响马氏体稳定化的诸多因素中的两个重要因素。
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| 关 键 词： | 铜基合金 锌合金 铝合金 马氏体 热特性 分级淬火 稳定性 使用寿命/Cu-Zn-Al合金 热弹性 形状记忆合金 稳定化 |
THE STABILIZATION OF THERMOELASTIC MARTENSITE AND ESTIMATE OF ONE WAY MEMORY LIFE IN Cu-Zn-AI ALLOYS |
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| Wang Mingpu Liu Jinwen Central South University of Technology,Wang Feng Changling Oil Refinery.THE STABILIZATION OF THERMOELASTIC MARTENSITE AND ESTIMATE OF ONE WAY MEMORY LIFE IN Cu-Zn-AI ALLOYS[J].Journal of Central South University:Science and Technology,1988(2). |
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| Authors: | Wang Mingpu Liu Jinwen Central South University of Technology Wang Feng Changling Oil Refinery |
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| Institution: | Wang Mingpu Liu Jinwen Central South University of Technology
Wang Feng Changling Oil Refinery |
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| Abstract: | The stabilization of thermoelastic martensite in Cu-Zn-Al alloys has been stud-
ied.It is shown that when the alloys are aged in the martensite state,the marten-
sites,both in direct quenched alloy and step quenched alloy,become stabilized.But
the martensite stabilization rate of the latter is far smaller than that of the former
and a contrary result exists in activation energy.The experiment results above can
be used to estimate one way memory life of the alloys.Moreover,the machanism of
the martensite stabilization has been studied.It is suggested that the reordering of
the martensite and pinning by the excess quenched-in vacancies would be the two
important factors among other factors affecting the martensite stabilization. |
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| Keywords: | copper-base alloys zinc-alloys aluminium alloys martensite elasticity thermal characteristics martempering stability service life/Cu-Zn-Al alloys termoelastity shape memory alloys stabilization |
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