| Cu-Zn-Al合金两相区淬火对形状记忆效应的影响 |
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| 引用本文： | 徐恒钧,千东范.Cu-Zn-Al合金两相区淬火对形状记忆效应的影响[J].北京工业大学学报,1993,19(3):14-18. |
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| 作者姓名： | 徐恒钧 千东范 |
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| 作者单位： | 北京工业大学金属材料科学与工程学系
(徐恒钧，袁晓珉)，北京有色金属研究总院(千东范) |
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| 摘 要： | 在α+β两相区不同温度淬火对CU—25.44Zn—3.94Al形状记忆合金的相组成、相变温变及形状记忆效应的影响。研究结果表明,Cu—Zn—Al合金在α+β两相区合适的温变加热淬火,晶粒细小,其形状记忆效应优于在β单相区加热淬火者且相变温度较易调整,单向和双向记忆效应最佳的淬火温变分别为720℃和700℃,讨论了α+β两相区淬火对双向记忆效应影响的机制。
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| 关 键 词： | 相变温度 双向记忆效应 形状记忆合金 |
Effect of Quenching from α+β Area on Memory Effect of Cu-Zn-Al Shape Memory Alloy |
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| Xu Hengjun Yuan Xiaomin.Effect of Quenching from α+β Area on Memory Effect of Cu-Zn-Al Shape Memory Alloy[J].Journal of Beijing Polytechnic University,1993,19(3):14-18. |
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| Authors: | Xu Hengjun Yuan Xiaomin |
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| Affiliation: | Xu Hengjun Yuan Xiaomin ( Department of Metallic Materials Science and Engineering )Qian Dongfan ( Beijing General Research Institute for Non-Ferrous Metals ) |
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| Abstract: | In order to improve fatigue durability of the Cu -Zn -Al shape memory alloy, the effect of different quenching temperatures within α + β area on phase components, phase transition temperature and shape memory effect of a Cu -25.44 Zn -3.94 Al shape memory alloy has been studied. The experiment results show that specimens quenched from suitable temperatures within the α + β area have much finer crystal grains and exhibit better shape memory effect than those quenched from temperatures in β area. Their phase transition temperatures can be controlled conveniently by varing the quenching temperature. The optimum quenching temperatures for one -way shape memory effect and two -way shape memory effect are 720 ℃ and 700℃, respectively. The mechanism of the effect of quenching temperature within α+ β area on two - way shape memory effect of the alloy has been discussed. |
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| Keywords: | phase transition temperature two -way shape memory effect shape memory alloy |
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