Effect of inclusions on the formation of acicular ferrite in Ti-bearing non quenched-and-tempered steel

被引：6
|
作者：
Yang, Ying
Lai, Chaobin
Wang, Fuming [1 ]
Yang, Zhanbing
Song, Bo
机构：
[1] Univ Sci & Technol Beijing, Met & Ecol Engn Sch, Beijing 100083, Peoples R China
[2] Anshan Iron & Steel Grp Corp, Ctr Technol, Anshan 114009, Peoples R China
[3] Xinyu Iron & Steel Grp, Ctr Technol, Xinyu 336501, Peoples R China
来源：
JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING | 2007年 / 14卷 / 06期
关键词：
acicular ferrite; titanium; inclusions; non quenched-and-tempered steel;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nucleation of acicular ferrite and its influence factors in non quenched-and-tempered steel was studied by using TEM and thermodynamic calculation. The results show that the complex particles with a center made of Ti oxide, Al2O3, and silicate and an outside made of a small quantity of mixture of TiN and MnS are able to act as ferrite nucleation nuclei. The acicular ferrite percentage changes little with Ti. When the oxygen content was 80 ppm, the volume percentage of acicular ferrite decreased due to an increase in allotriomorphic ferrite. The larger the cooling rate and the shorter the incubation time, the finer the titanium oxide and the higher the nucleation ratio of acicular ferrite.
引用
收藏
页码：501 / 506
页数：6
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