Thermal stability of retained Austenite in TRIP steel after different treatments

被引:11
|
作者
Shi Wen [1 ]
Li Lin [1 ]
De Cooman, Bruno C. [2 ]
Wollants, Patrick [3 ]
Yang Chun-Xia [1 ]
机构
[1] Shanghai Univ, Dept Mat Sci & Engn, Shanghai 200072, Peoples R China
[2] Dept Mat Sci & Engn, Lab Iron & Steel Making, BE-9052 Ghent, Belgium
[3] Katholieke Univ Leuven, Dept MTM, B-3001 Heverlee, Belgium
基金
中国国家自然科学基金;
关键词
TRIP steel; retained austenite; thermal stability; differential scanning calorimetry;
D O I
10.1016/S1006-706X(08)60013-8
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Thermal decomposition of retained austenite in TRIP steel was investigated by means of differential scanning calorimetry (DSc). The decomposition curve was abnormal, and the decomposition temperature and the activation energy were measured by the Kissinger method, which were all higher than those in quenched steel. The thermal decomposition data of samples soaked in liquid nitrogen after TRIP treatment were all similar to those without additional low temperature treatment. It indicated that there is a high thermal stability in retained austenite of the TRIP steel at low temperature, which was also proved by XRD analysis.
引用
收藏
页码:61 / 64
页数:4
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