| 重新训练对Cu－Zn－Al合金组织与记忆性能的影响 |
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| 引用本文： | 刘玉先,赵春霞,吴启妹,时其铨. 重新训练对Cu－Zn－Al合金组织与记忆性能的影响[J]. 山东大学学报(工学版), 1994, 0(3) |
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| 作者姓名： | 刘玉先 赵春霞 吴启妹 时其铨 |
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| 作者单位： | 山东工业大学材料工程系，山东工业大学研究生部 |
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| 摘 要： | 用约束训练法对热循环后的Ｃｕ－Ｚｎ－Ａｌ形状记忆合金进行了重新训练．结果表明，热循环导致的记忆衰减可以通过重新训练予以改善．透射电镜和Ｘ射线衍射分析指出，重新训练后，发生了马氏体的再取向，因热循环而引入的细条状、台阶状及交叉状变体大部分消除，马氏体内的位错密度降低，有序度增高，从而改善了合金的记忆性能．
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| 关 键 词： | 显微组织（金相学），铜基合金，形状记忆合金 |
EFFECT OF RENEWALE TRAINING ON THE STRUCTURE AND MEMORY PROPERTIES OF Cu-Zn-Al ALLOY |
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| Liu Yuxian,Zhao Chunxia,Wu Qimei et al. EFFECT OF RENEWALE TRAINING ON THE STRUCTURE AND MEMORY PROPERTIES OF Cu-Zn-Al ALLOY[J]. Journal of Shandong University of Technology, 1994, 0(3) |
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| Authors: | Liu Yuxian Zhao Chunxia Wu Qimei et al |
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| Abstract: | The shape memory Cu-Zn-Al alloy subjected to thermal cycling has been renewly trained by the restraining method. The result has shown that the memory decay resulted form thermal cycling can be improved. The TEM and X-ray analysis showed that the reorientation of martensite is exhibited through the renewal training,the as-strip,as-stagger and as-interactive transformed structures produced by thermal cycling are mostly eliminated, the dislocation density is lowered in the martensite,and the dislocation density is lowered in the martensite, and the ordering degree is increased,thus the memory properties of the alloy are improved. |
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| Keywords: | Micro structure(metallography) Copper-base alloys Shape memory alloys |
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