Dynamic Observation of Bainite Transformation in a Fe-C-Mn-Si Superbainite Steel

被引：11

作者：

Hu Haijiang ^{[1
,2
]}

Xu Guang ^{[1
]}

Zhang Yulong ^{[2
]}

Xue Zhengliang ^{[1
]}

Zhou Mingxing ^{[1
]}

机构：

[1] Wuhan Univ Sci & Technol, Hubei Collaborat Innovat Ctr Adv Steels, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China

[2] Baosteel Grp, State Key Lab Dev & Applicat Technol Automot Stee, Shanghai 201900, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2015年 / 30卷 / 04期

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

bainite transformation; dynamic observation; microstructure; growth rate; ALLOYS; IRON;

D O I：

10.1007/s11595-015-1234-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dynamic observations of bainitic transformation in a Fe-C-Mn-Si superbainite steel were conducted on a high temperature laser scanning confocal microscope. It is indicated that the mutual intersection of bainite sheaves often occurs during growth of bainite ferrite, resulting in an interlocked bainite microstructure. Moreover, bainite transformation is promoted by higher austenization temperature and the longer and finer bainite platelets are obtained. Further, The average growth rate of bainite after austenization at 1 100 degrees C is calculated as 5.8 mu m.s(-1). In situ observation investigation makes it possible to identify bainite transformation in real time during isothermal holding.

引用

页码：818 / 821

页数：4

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