Stability of retained austenite in TRIP-assisted steels

被引：129
|
作者：
Sherif, MY [1 ]
Mateo, CG [1 ]
Sourmail, T [1 ]
Bhadeshia, HKDH [1 ]
机构：
[1] Dept Mat Sci & Met, Cambridge CB2 3QZ, England
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2004年 / 20卷 / 03期
关键词：
TRIP steels; austenite; retained austenite; strain induced transformation; martensitic transformation; modelling;
D O I：
10.1179/026708304225011180
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A theory is developed for the quantitative representation of the strain induced transformation of retained austenite in low alloy, TRIP-assisted steels of the type developed for the automobile industry. It is possible, therefore, to calculate the fraction of austenite as a function of the plastic strain, chemical composition, deformation temperature and the starting amount of austenite. The effect of composition and temperature is expressed through the free energy available for transformation. Good agreement has been obtained with published experimental data. The model can be used to investigate the stability of the austenite during plastic deformation.
引用
收藏
页码：319 / 322
页数：4
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