Numerical Investigation of Deformation-Induced Dynamic Transformation in Fe-C alloy Using a Q-state Potts Monte Carlo Model

被引：0

作者：

Xiao, Namin ^{[1
]}

Li, Dianzhong ^{[1
]}

Li, Yiyi ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110076, Peoples R China

来源：

TMS 2009 138TH ANNUAL MEETING & EXHIBITION - SUPPLEMENTAL PROCEEDINGS, VOL 2: MATERIALS CHARACTERIZATION, COMPUTATION AND MODELING | 2009年

关键词：

Monte Carlo; Austenite; Ferrite; Dynamic transformation; Dynamic recrystallization; COMPUTER-SIMULATION; ULTRAFINE FERRITE; AUSTENITE; TOPOLOGY; FLOW;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The deformation induced dynamic transformation (DIDT) of a Fe-C alloy above Ae(3) temperature is simulated using a Q-state Potts Monte Carlo (MC) model. The austenite-to-ferrite transformation, dynamic recrystallization (DRX) of austenite and ferrite and the fenite-to-austenite reverse transformation can be simulated simultaneously in one 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 influence of deformation parameters, including temperature and strain rate, on the microstructure evolution are discussed. The simulation results show that the competition between the DRX of austenite and austenite-to-ferrite transformation causes the different microstructures for the different deformation parameters.

引用

页码：87 / 94

页数：8

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