| CuZnAl形状记忆合金时效过程研究 |
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| 引用本文： | 齐民,赵旭,杨大智. CuZnAl形状记忆合金时效过程研究[J]. 大连理工大学学报, 1988, 0(4) |
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| 作者姓名： | 齐民 赵旭 杨大智 |
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| 作者单位： | 大连理工大学材料工程系(齐民，赵旭)，大连理工大学材料工程系(杨大智) |
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| 基金项目： | 国家自然科学基金资助课题 |
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| 摘 要： | 铜基形状记忆合金的时效是影响其应用的关键之一。对ＣｕＺｎＡｌ形状记忆合金 时效过程的研究表明：在 ２９３～３７３Ｋ温度范围内时效，随时效温度的提高．马氏体 相向母相转变的温度变化值减小．时效作用减弱；母相保温可使相变点稳定；造成 ＣｕＺｎＡｌ形状记忆合金时效的一个重要原因是淬火过饱和空位的偏聚。
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| 关 键 词： | 铜基合金 时效 马氏体转变 相变点 正电子 湮灭/CuZnAl形状记忆合金 |
A Study of Aging Process of CuZnAl Shape Memory Alloys |
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| Qi Min,Zhao Xu,Yang Dazhi. A Study of Aging Process of CuZnAl Shape Memory Alloys[J]. Journal of Dalian University of Technology, 1988, 0(4) |
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| Authors: | Qi Min Zhao Xu Yang Dazhi |
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| Affiliation: | Dept. of Materials Eng. DUT |
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| Abstract: | The aging of Cu-based Shape Memory Alloys is one of the key factors for its application. The study of the aging process of CuZnAl Shape Memory Alloys shows that as the aging temperature increases, the changes of the transformation temperature for martensite to parent phase ( As )decrease and the effect of aging becomes weaker when aged in the range of 293K to 373K. It can make transformation temperature (As ) stable to hold in parent phase.One of the important reasons for aging of CuZnAl Shape Memory Alloys is the amassment of the excess quenched-in vacancies. |
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| Keywords: | copper-based alloys aging martensitic transformation phase transformation points positrons annihilations/CuZnAl shape memory alloys |
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