Ultra-fine ferrite grains obtained in the TSDR process

被引：1

作者：

Zhang, Ling ^{[1
]}

Yang, Wangyue ^{[1
]}

Xue, Chunxia ^{[2
]}

Sun, Zuqing ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

来源：

JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING | 2008年 / 15卷 / 05期

关键词：

ultra-fine ferrite; niobium; precipitation; austenite; recrystallization; thin slab direct rolling;

D O I：

10.1016/S1005-8850(08)60106-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By careful design of rolling schedule, ultra-fine (similar to 2 mu m) ferrite grains in a low carbon high nobium (0.09wt%Nb) micro-alloying steel with average austenite grain sizes above 800 mu m can be achieved in the simulated thin slab direct rolling process. The 5-pass deformation was divided into two stages: the refinement of austenite through complete recrystallization and the refinement of ferrite through dynamic strain-induced transformation. The effects of Nb in solution and strain-induced NbCN precipitates on the ferrite transformation were also extensively discussed. (C) 2008 University of Science and Technology Beijing. All rights reserved.

引用

页码：568 / 573

页数：6

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