| Dislocation evolution with rheological forming of metal |
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| 作者姓名： | Luo Yingshe |
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| 作者单位： | Luo Yingshe(罗迎社) 1，Guo Xiaogang(郭小刚) 1，Mei Yafu(梅亚夫) 2，Hu Yungui(胡云贵) 3 1. Research Institute of Fundamental Mechanics and Materials Engineering，2. College of Mechanical Engineering，Xiangtan University，Xiangtan 411105，P. R. China |
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| 基金项目： | 中国科学院资助项目，中国科学院资助项目 |
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| 摘 要： | １ ＩＮＴＲＯＤＵＣＴＩＯＮＵｎｔｉｌｎｏｗ，ｆｏｒｍｏｓｔｏｆｔｈｅａｐｐｌｉｅｄｅｎｇｉｎｅｅｒｉｎｇｍａｔｅｒｉａｌｓ，ｔｈｅｒｅｗｏｕｌｄｂｅｓｏｍｅｉｎｔｅｒｎａｌｄｅｆｅｃｔｓｉｎｔｈｅｍ；ｆｏｒｅｘａｍｐｌｅｓ，ｉｍｐｕｒｉｔｉｅｓ，ｃｒａｃｋｓ，ｃａｖｉｔｉｅｓ，ｐｏｉｎｔｄｅｆｅｃｔｓｓｕｃｈａｓｄｉｓｐｌａｃｅｄａｔｏｍｏｒｆｏｒｅｉｇｎｍａｔｔｅｒａｔｏｍｓ，ａｎｄｌｉｎｅｄｅｆｅｃｔｓｓｕｃｈａｓｄｉｓｌｏｃａｔｉｏｎ，ｐｌａｎｅｄｅｆｅｃｔｓｃａｕｓｅｄｂｙｐｉｌｅｄ…
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Dislocation evolution with rheological forming of metal |
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| Luo Yingshe,Guo Xiaogang,Mei Yafu,Hu Yungui.Dislocation evolution with rheological forming of metal[J].Transactions of Nonferrous Metals Society of China,1999,9(3):1. |
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| Authors: | Luo Yingshe Guo Xiaogang Mei Yafu Hu Yungui |
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| Abstract: | It is known that some internal defects exist in metal materials. Preliminary attempt to relate dislo cation evolution with metal rheological forming was done. By the attempt, it is learned that the evolution of dislocation density p( x, y, t ) is essentially the change of n independent internal variables qα (α = 1, 2, …n ) with material. The preliminary research in theory and experiments showed that dislocations piling-up could be avoided. One can improve the internal microstructure and mechanical properties of products by rheological forming method. |
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| Keywords: | dislocation metal rheological forming |
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