物理学报2009，Vol.58Issue(z1)：169-176,8.
Fe-C合金中形变诱导动态相变的蒙特卡罗模拟
Numerical investigation of deformation-induced dynamic transformation in Fe-C alloy by using a Q-state potts Monte Carlo model
摘要
Abstract
The deformation induced dynamic transformation (DIDT) of a Fe-C alloy above austenite transformation equilibrium temperature is simulated by using a Q-state potts Monte Carlo (MC) model. The austenite-to-ferrite transformation, dynamic recrystallization (DRX) of austenite and ferrite, and the ferrite-to-austenite reverse transformation can be simulated simultaneously in the same MC model by building suitable MC transition rules. Meanwhile, an affine transformation model based on vector operation is also coupled with the MC model for the first time for tracking the changes in grain shape during dynamic transformation. The formation of ferrite during DIDT and the influence of austenite DRX on DIDT are simulated based on this MC model. The simulation results show that the competition between the DRX of austenite and the austenite-to-ferrite transformation causes the oscillation behaviour of ferrite kinetics.关键词
形变诱导动态相变/蒙特卡罗模型/动态再结晶/介观模拟Key words
deformation induced dynamic transformation/Monte Carlo model/dynamic recrystallization/mesoscopic simulation分类
数理科学引用本文复制引用
肖纳敏,李殿中,李依依..Fe-C合金中形变诱导动态相变的蒙特卡罗模拟[J].物理学报,2009,58(z1):169-176,8.基金项目
国家自然科学基金(批准号:50871109)资助的课题.Project supported by the National Natural Science Foundation of China (Grant No. 50871109). （批准号:50871109）
