大尺度模拟二维晶粒长大过程的相场法研究

梁冬梅; 李洁; 张义灵; 罗志荣

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大尺度模拟二维晶粒长大过程的相场法研究
Study on phase field method for large-scale simulation of two-dimensional grain growth process
2018年48卷第11期页码：107-111
DOI：

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梁冬梅, 李洁, 张义灵, 等. 大尺度模拟二维晶粒长大过程的相场法研究[J]. 电焊机, 2018,48(11):107-111.

LIANG Dongmei, LI Jie, ZHANG Yiling, et al. Study on phase field method for large-scale simulation of two-dimensional grain growth process[J]. 2018,48(11):107-111.
梁冬梅, 李洁, 张义灵, 等. 大尺度模拟二维晶粒长大过程的相场法研究[J]. 电焊机, 2018,48(11):107-111. DOI：

LIANG Dongmei, LI Jie, ZHANG Yiling, et al. Study on phase field method for large-scale simulation of two-dimensional grain growth process[J]. 2018,48(11):107-111. DOI：

摘要

采用相场法大尺度模拟二维晶粒长大过程,统计分析了晶粒半径、晶粒边数的分布特征以及晶粒半径与边数的相关性,研究了单个晶粒长大动力学和长大轨迹。结果表明,相对晶粒半径和晶粒边数分布均具有自相似性,晶粒边数与晶粒半径呈正相关;单个晶粒的长大速率和半径的关系与Hillert方程吻合较好。

Abstract

The two-dimensional grain growth process is simulated by phase field method. The grain radius, distribution characteristics of grain edge number,and the correlation between grain radius and edge number are analyzed statistically. The kinetics and track of individual grain growth are studied. The results show that the distributions of relative grain radius and grain edge number have selfsimilarity. There is a positive correlation between the grain edge number and grain radius. The relationship between the growth rate and radius of individual grain agrees well with Hillert equation.