Ultra-fine ferrite grains obtained in the TSDR process

被引：0
|
作者：
Ling Zhang1)
机构：
来源：
International Journal of Minerals,Metallurgy and Materials | 2008年 / 05期
关键词：
ultra-fine ferrite; niobium; precipitation; austenite; recrystallization; thin slab direct rolling;
D O I：
暂无
中图分类号：
TG335 [轧制工艺];
学科分类号：
080201 ; 080503 ;
摘要：
By careful design of rolling schedule,ultra-fine (～2μm) ferrite grains in a low carbon high niobium (0.09wt%Nb) micro-alloying steel with average austenite grain sizes above 800 μm 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.
引用
收藏
页码：568 / 573
页数：6
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