| 基于改进转变规则的晶粒长大CA模型 |
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| 引用本文： | 麻晓飞,关小军,刘运腾,申孝民,王丽君,宋述同,曾庆凯.基于改进转变规则的晶粒长大CA模型[J].中国有色金属学报,2008,18(1):138-144. |
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| 作者姓名： | 麻晓飞 关小军 刘运腾 申孝民 王丽君 宋述同 曾庆凯 |
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| 作者单位： | 山东大学,材料科学与工程学院,济南,250061 |
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| 基金项目： | 山东省国际合作资助项目
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山东省自然科学基金 |
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| 摘 要： | 为建立一个具有更好物理基础的晶粒长大仿真模型,采用CA法,基于热力学和能量机制,提出元胞取向状态转变的二次判断方式,制定相应的转变规则,并对不同温度和材料迁移激活能条件下晶粒长大过程进行模拟研究。模拟结果较准确地反映正常晶粒长大规律以及温度和材料迁移激活能的影响规律,且得到实际观察和相关理论的验证。
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| 关 键 词： | 元胞自动机 计算机模拟 晶粒长大 转变规则 改进 状态转变 规则 正常晶粒长大 仿真模型 rule transition modified based grain growth model automaton 验证 相关理论 影响 规律 模拟结果 模拟研究 长大过程 条件 |
| 文章编号： | 1004-0609（2008）01-0138-07 |
| 收稿时间： | 2007-05-23 |
| 修稿时间： | 2007-10-31 |
Cellular automaton model for grain growth based on modified transition rule |
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| MA Xiao-fei,GUAN Xiao-jun,LIU Yun-teng,SHEN Xiao-min,WANG Li-jun,SONG Shu-tong,ZENG Qing-kai.Cellular automaton model for grain growth based on modified transition rule[J].The Chinese Journal of Nonferrous Metals,2008,18(1):138-144. |
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| Authors: | MA Xiao-fei GUAN Xiao-jun LIU Yun-teng SHEN Xiao-min WANG Li-jun SONG Shu-tong ZENG Qing-kai |
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| Abstract: | In order to set up a CA model that has a better physical significance, a new second criterion, considering the effects of the thermodynamic mechanism and the activation energy, was appended for the transition of cellular state. The grain growth processes were investigated for different temperatures and activation energies, respectively. The results are in accordance with the normal grain growth kinetics and reflect the both effects of temperature and the activation energy. |
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