Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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Transactions of Nonferrous Metals Society of China

Vol. 14    No. 6    December 2004

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Modification of computer simulation of normal grain growth
LI Jian(李 剑), LI Shi-chen(李世晨), ZHENG Zi-qiao(郑子樵),
LIU Zu-yao(刘祖耀),  CHEN Da-qin(陈大钦)

School of Materials Science and Engineering, Central South University,
Changsha 410083, China

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.


Key words:  transition probability; normal grain growth; Monte Carlo method; computer simulation

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

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