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Study on the relation among grain edge length, grain size and topology with Monte Carlo simulation

Wang Hao Luan Jun-Hua Yue Jing-Chao Liu Guo-Quan Qin Xiang-Ge

Study on the relation among grain edge length, grain size and topology with Monte Carlo simulation

Wang Hao, Luan Jun-Hua, Yue Jing-Chao, Liu Guo-Quan, Qin Xiang-Ge
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Publishing process
  • Received Date:  18 December 2008
  • Accepted Date:  23 March 2009
  • Published Online:  21 December 2009

Study on the relation among grain edge length, grain size and topology with Monte Carlo simulation

  • 1. (1)北京科技大学材料科学与工程学院,北京 100083; (2)北京科技大学材料科学与工程学院,北京 100083;北京科技大学新金属材料国家重点实验室,北京 100083; (3)佳木斯大学材料科学与工程学院,佳木斯 154007

Abstract: The relation among grain edge length, grain size and topology is studied by large-scale Potts model-Monte Carlo simulation. The results show that the grain edge length is related to the number of grain faces by a linear relation, which is also observed to hold in Poisson-Voronoi structure and average N-hedra. The distribution of the grain edge lengths maintains self-similarity in the period of quasi-stationary grain growth. The average length of an edge segment in individual grains varies with grain size (or the number of grain faces),thereby indicating that assuming the lengths of edge segments in all individual grains to be equal averagely as does in some models is subject to some limitations. The data of Monte Carlo simulated grains and pure iron show that the grain size is related to the face number by a curve convex upward.

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