| Effect of electropulse modification parameters on ingot macrostructure of Cu—Al—Ni shape memory alloys |
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| 引用本文： | 王建中,陈庆福,曹丽云,赵连城. Effect of electropulse modification parameters on ingot macrostructure of Cu—Al—Ni shape memory alloys[J]. 中国有色金属学会会刊, 2002, 12(3): 400-403 |
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| 作者姓名： | 王建中 陈庆福 曹丽云 赵连城 |
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| 作者单位： | 1. Department of Materials and Chemical Engineering，Liaoning Institute of Technology，Jinzhou 121001，China; 2. School of Materials Science and Engineering，Harbin Institute of Technology |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＩｔｉｓｋｎｏｗｎｔｈａｔｔｈｅｍａｉｎｏｂｓｔａｃｌｅｓｔｏｔｈｅａｐｐｌｉ ｃａｔｉｏｎｏｆｐｏｌｙｃｒｙｓｔａｌｌｉｎｅＣｕ Ａｌ Ｎｉａｌｌｏｙｓａｒｅｃｏａｒｓｅｉｎｇｒａｉｎ ｓｉｚｅａｎｄｉｔｓｃｏｎｃｏｍｉｔａｎｔｉ
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| 关 键 词： | 铜基形状记忆合金 形状记忆效应 显微结构 |
Effect of electropulse modification parameters on ingot macrostructure of Cu-Al-Ni shape memory alloys |
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| WANG Jian zhong,CHEN Qing fu CAO Li yun,ZHAO Lian cheng. Effect of electropulse modification parameters on ingot macrostructure of Cu-Al-Ni shape memory alloys[J]. Transactions of Nonferrous Metals Society of China, 2002, 12(3): 400-403 |
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| Authors: | WANG Jian zhong CHEN Qing fu CAO Li yun ZHAO Lian cheng |
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| Abstract: | In order to improve ingot structure and to refine grain size of Cu Al Ni shape memory alloys by means of electropulse modification, the effect of voltage, frequency and time of the pulse as well as the type of cooling mold on the macrostructure of ingot have been systematically studied. The results show that the above four parameters are important influencing factors on the ingot macrostructure. By appropriately adjusting the parameters, the macrostructure of polycrystalline Cu Al Ni ingot can be significantly improved and nearly fully equiaxied region of the ingot is obtained; the corresponding grain size of the ingot can be dramatically reduced to less than 1/20 of that of unmodified. |
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| Keywords: | electropulsation parameters Cu Al Ni shape memory macrostructure |
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