| Cu-23.48at%Zn-8.63at%Al形状记忆合金时效的正电子湮没研究 |
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| 引用本文： | 王景成,邵自昌.Cu-23.48at%Zn-8.63at%Al形状记忆合金时效的正电子湮没研究[J].核技术,1987(5). |
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| 作者姓名： | 王景成 邵自昌 |
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| 作者单位： | 上海钢铁研究所
(王景成)，上海钢铁研究所(邵自昌) |
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| 摘 要： | 由于铜基合金价格十分低廉,已经成为形状记忆合金领域的重要研究对象。但是,这方面的大量工作表明该类合金存在稳定化的问题,淬火后具有热弹马氏体转变的试样存放一定时间后就失去或大大减弱记忆效应。不少作者采用电阻率、X射线、电镜等手段进行了分析,而用正电子湮没方法的工作较少。本文用正电子湮没多普勒展宽能谱初步测量了成分
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| 关 键 词： | 正电子湮没 形状记忆合金 时效 |
An investigation of the aging in a Cu-23.48at%Zn-8.63at%Al shape memory alloy by means of positron annihilation |
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| Wang Jingcheng Shao Zichang.An investigation of the aging in a Cu-23.48at%Zn-8.63at%Al shape memory alloy by means of positron annihilation[J].Nuclear Techniques,1987(5). |
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| Authors: | Wang Jingcheng Shao Zichang |
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| Affiliation: | Shanghai Iron and Steel Research Institute |
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| Abstract: | The S-lineshape parameter measurements of positron annihilation Doppler-broadening were performed for a Cu-23.48at%Zn-8.63 at%Al shape memory alloy. The S-parame-ters progressively decrease with prolonged holding at room temperature. The result showed that the state containing martensitic and parent phase has an aging effect, of whioh mi-cromechanism is an annihilation of vacancies. |
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| Keywords: | positron annihilation shape memory alloy copper-zine-aluminum aging effect |
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