Effect of the stability of retained austenite on elongation in hot-rolled high strength steels

被引：8
|
作者：
Kawano, O [1 ]
Wakita, J [1 ]
Takahashi, M [1 ]
机构：
[1] NIPPON STEEL CORP LTD,STEEL RES LABS,TOKYO,JAPAN
来源：
TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN | 1996年 / 82卷 / 04期
关键词：
retained austenite; high strength steels; total elongation; TRIP; uniform elongation; local elongation; plastic stability; hot-rolled product;
D O I：
10.2355/tetsutohagane1955.82.4_333
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of plastic stability of retained austenite on elongation was investigated using Fe-0.17%C-1.99%Si-1.77%Mn hot-rolled high strength steel sheets produced in the mill-scale test. The results obtained are as follows; (1) Total elongation, uniform elongation and local elongation have a tendency to be improved with the increase of the plastic stability of retained austenite when volume fraction of retained austenite is nearly equal. (2) The plastic stability of retained austenite has a tendency to be improved with the increase of carbon contents in retained austenite. (3) The volume fraction of retained austenite at 15% tensile strain, kp and n-value over very small strain interval have strong relation to elongation. They are considered to be indexes for the effect of the plastic stability of retained austenite on elongation.
引用
收藏
页码：333 / 337
页数：5
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