A phase-field model for bainitic transformation

被引：25
作者：
Arif, T. T. [1 ]
Qin, R. S. [1 ]
机构：
[1] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2AZ, England
来源：
COMPUTATIONAL MATERIALS SCIENCE | 2013年 / 77卷
基金：
英国工程与自然科学研究理事会;
关键词：
Displacive phase transitions; Phase-field model; Bainite transformation; Cubic crystal; Autocatalysis; BINARY-ALLOYS; MICROSTRUCTURE EVOLUTION; KINETICS; STEELS; SOLIDIFICATION; MULTICOMPONENT; SIMULATION; INTERFACE; SYSTEM; CARBON;
D O I：
10.1016/j.commatsci.2013.04.044
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A phase-field model for the computation of microstructure evolution for the bainite transformation has been developed. The model has a classical phase-field foundation, incorporates the phenomenological displacive transformation theory and the symmetric analysis of cubic crystals, and is able to reproduce realistic grain morphology and crystal orientation after adequate calibration. Using the free energy expression for the shape change of displacive transformations along with the free energy formula for the chemical free energy change of the two phases derived from established regular solution models, the current model is able to deal with autocatalysis. (c) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：230 / 235
页数：6
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