EVOLUTIONARY MECHANISM OF ULTRA-FINE BAINITE FERRITE DURING REHEATING

被引：0
|
作者：
Wu, H. B. [1 ]
Liang, G. L. [1 ,2 ]
机构：
[1] Univ Sci & Technol Beijing, Natl Engn Res Ctr Adv Rolling Technol, Beijing 100083, Peoples R China
[2] Tangshan Coll, Dept Electromech Engn, Tangshan 063000, Peoples R China
来源：
REVIEWS ON ADVANCED MATERIALS SCIENCE | 2013年 / 33卷 / 01期
关键词：
MICROSTRUCTURES; RELAXATION; STABILITY;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Using thermal simulation test and along with SEM and TEM observation, the evolutionary mechanism of ultra-fine bainite ferrite in low carbon microalloyed steel during reheating at 700 degrees C has been studied. The experiment results show that the dislocations inside bainite ferrite laths polygonization play a precursor to the evolution of microstructures during reheating and holding, followed by granulation of the retained austenite and gradual disappearance of lath boundaries caused by dislocation climb. Finally, recrystallization happens and polygonal ferrite appears.
引用
收藏
页码：65 / 68
页数：4
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