柳文波,张弛,杨志刚,许峰云

• 1:清华大学材料科学与工程系先进材料教育部重点实验室

摘要(Abstract)：

用三维元胞自动机法(CA法)模拟纯铜在400℃以0.0005s-1的应变率发生动态再结晶(DRX)的过程。给出了母相和再结晶晶粒的平均位错密度随着应变量的变化规律;根据平均位错密度的变化研究了纯铜动态再结晶中形核、长大、动态回复和加工硬化等过程。模拟了纯铜动态再结晶过程中的应力-应变曲线及平均晶粒尺寸的变化规律,模拟结果与文献中的试验结果吻合较好。

关键词(KeyWords)： 位错密度;三维;动态再结晶;元胞自动机

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(50871059);; 教育部留学回国基金项目

作者(Author): 柳文波,张弛,杨志刚,许峰云

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