A Study of Growth of Austenite Grains in a Steel Microalloyed with Ti and Nb

被引：8
|
作者：
Yang, H. L. [1 ,2 ]
Xu, G. [1 ]
Wang, L. [2 ]
Yuan, Q. [1 ]
He, B. [1 ]
机构：
[1] Wuhan Univ Sci & Technol, Hubei Collaborat Innovat Ctr Adv Steels, State Key Lab Refractories & Met, Wuhan, Peoples R China
[2] Baosteel Grp, State Key Lab Dev & Applicat Technol Automot Stee, Shanghai Baoshan, Peoples R China
来源：
METAL SCIENCE AND HEAT TREATMENT | 2017年 / 59卷 / 1-2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：
microalloyed steel; grain growth; austenite; critical temperature; dissolution of carbonitrides;
D O I：
10.1007/s11041-017-0093-1
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The growth of austenite grains and the dissolution of carbonitrides under heating of a structural steel microalloyed with niobium and titanium are studied. The microstructure of the steel is investigated with the help of light and transmission electron microscopes. The content of elements in precipitated particles is determined using an energy dispersive spectrometer. The kinetic equation of grain growth is derived and the critical temperature above which the carbonitrides stop to hinder grain growth is determined. Recommendations are given on the temperature modes of hot rolling.
引用
收藏
页码：8 / 13
页数：6
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