关小军,麻晓飞,王丽君,刘运腾,申孝民,宋述同,曾庆凯

• 1:山东大学材料科学与工程学院
• 2:临沂师范学院工程学院

摘要(Abstract)：

为了探讨元胞自动机(CA)方法模拟析出相粒子对材料晶粒长大过程影响的应用,在现有晶粒长大CA模型的基础上,综合应用曲率驱动机制和能量驱动机制,建立了适合于含有析出相粒子材料和具有新转变规则的晶粒长大模型,应用该模型对含有不同体积分数析出相粒子的材料晶粒长大过程进行了仿真模拟和定量分析。结果表明:所建模型能够较准确地反映析出相粒子对晶粒长大过程影响的基本规律,且更加敏感地反映了析出相粒子体积分数对晶粒长大过程的影响;随着析出相粒子体积分数的逐渐增加,晶界脱钉现象不易发生且晶粒长大指数不断减小。

关键词(KeyWords)： 元胞自动机;模型;晶粒长大;析出相粒子;体积分数

Abstract:

Keywords:

基金项目(Foundation): 山东省自然科学基金项目(Y2007F06);; 山东省国际科技合作计划项目(2006)

作者(Author): 关小军,麻晓飞,王丽君,刘运腾,申孝民,宋述同,曾庆凯

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