Dislocation-precipitate interaction and its effect on thermostability of bainite in a Nb-bearing steel

被引：7
|
作者：
Yang, SW [1 ]
Wu, HB
Yuan, SQ
Shang, CJ
Wang, XM
He, XL
机构：
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[2] Tangshan Coll, Tangshan 063000, Peoples R China
来源：
PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5 | 2005年 / 475-479卷
关键词：
dislocations; strain induced precipitate; pinning; thermostability;
D O I：
10.4028/www.scientific.net/MSF.475-479.125
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
After bainitic transformation, the dislocations formed in deformed austenite remained to be pinned by the precipitates so that thermostability of the bainitic ferrite was improved. Coarsening of the precipitates accompanied by their distribution density change occurred during reheating. After long reheating, further precipitates nucleated in bainite. Dislocations inside laths getting rid of pinning of precipitates and their polygonization play the precursor to the evolution of microstructures, in which lath boundaries disappeared gradually.
引用
收藏
页码：125 / 128
页数：4
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