Bainite transformation in Fe-0.34%C-Nb steels

被引：0

作者：

Zhao, S. X. ^{[1
]}

Wang, W. ^{[2
]}

Mao, D. L. ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China

[2] Baosteel Tech Ctr, Shanghai 201900, Peoples R China

来源：

ADVANCES IN COMPOSITE MATERIALS AND STRUCTURES, PTS 1 AND 2 | 2007年 / 334-335卷

关键词：

bainite; ferrite plate; sympathetic nucleation;

D O I：

10.4028/www.scientific.net/KEM.334-335.117

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The kinetics of bainite transformation, especially microstructure evolution of Fe-0.34%C-Nb steels was investigated. At both 30 degrees C/s and 20 degrees C/s cooling rates, B-s of 0.2%Nb steel is higher than that of 0.01%Nb steel, while the difference of B-f of those seems not significant, moreover, the amount of bainitic ferrite plates with 1-3 mu m thickness of 0.2%Nb steel is larger than that of 0.01%Nb steel. At 30 degrees C/s cooling rate, the dominating morphology of carbides of 0.2%Nb steel is discontinuous stringers and isolated particles, while in 0.01%Nb steel the continuous stringers seem increasing. The bainitic ferrite was found to nucleate at austenite/carbide interface as well as at austenite/ferrite interface.

引用

页码：117 / +

页数：2

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