| Modification of computer simulation of normal grain growth |
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| 引用本文： | 李剑,李世晨,郑子樵,刘祖耀,陈大钦. Modification of computer simulation of normal grain growth[J]. 中国有色金属学会会刊, 2004, 14(6): 1156-1161 |
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| 作者姓名： | 李剑 李世晨 郑子樵 刘祖耀 陈大钦 |
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| 作者单位： | SchoolofMaterialsScienceandEngineering,CentralSouthUniversity,Changsha410083,China |
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| 摘 要： | A set of principles on transition probability was supplied for the physical process of grain growth. In accord with these principles, a modified transition probability considering the influence of temperature was put forward to simulate the normal grain growth relying on temperature and second phase particles. The modified transition probability correctly reflects the dependence of grain growth on the temperature. The effect of different shapes of second phase particles on the grain growth process was taken into account using the modified transition probability. The relationship between the area fraction of second phase particles and the limit of grain size of the matrix was given. The microstructural evolution patterns employed to 2-D were given. The results agree well with the real grain growth process. All these suggest that the modified transition probability is better than the conventional one.
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| 关 键 词： | 计算机仿真 蒙特卡洛法 晶粒生长 蜕变概率 金属物理学 |
Modification of computer simulation of normal grain growth |
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| LI Jian,LI Shi-chen,ZHENG Zi-qiao,LIU Zu-yao,CHEN Da-qin. Modification of computer simulation of normal grain growth[J]. Transactions of Nonferrous Metals Society of China, 2004, 14(6): 1156-1161 |
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| Authors: | LI Jian LI Shi-chen ZHENG Zi-qiao LIU Zu-yao CHEN Da-qin |
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| Abstract: | A set of principles on transition probability was supplied for the physical process of grain growth. In accord with these principles, a modified transition probability considering the influence of temperature was put forward to simulate the normal grain growth relying on temperature and second phase particles. The modified transition probability correctly reflects the dependence of grain growth on the temperature. The effect of different shapes of second phase particles on the grain growth process was taken into account using the modified transition probability.The relationship between the area fraction of second phase particles and the limit of grain size of the matrix was given. The microstructural evolution patterns employed to 2-D were given. The results agree well with the real grain growth process. All these suggest that the modified transition probability is better than the conventional one. |
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| Keywords: | transition probability normal grain growth Monte Carlo method computer simulation |
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