Thermal and numerical simulation of mould electromagnetic stirring of GCr15 bearing steel

被引：15
|
作者：
Jiang, Danqing
Wang, Rui
Zhu, Longqiang
Zhang, Qiong
Li, Chuanjun [1 ,2 ]
Wang, Jiang
Ren, Zhongming [1 ,2 ]
机构：
[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China
[2] Shanghai Univ, State Key Lab Adv Special Steel, Shanghai 200444, Peoples R China
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2019年 / 35卷 / 18期
关键词：
Thermal simulation; solidification structure; bearing steel; continuous casting; electromagnetic stirring; numerical simulation; segregation; mechanical property; FLUID-FLOW; SOLIDIFICATION; BILLET; MICROSTRUCTURE; SEGREGATION; IMPROVEMENT; MORPHOLOGY; GROWTH;
D O I：
10.1080/02670836.2019.1664080
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The thermal and numerical simulation of the mould electromagnetic stirring (M-EMS) during continuous casting (CC) of the GCr15 bearing steel was performed. The thermal simulation apparatus with the M-EMS was used to examine the effect of stirring parameters on solidification structures. It was found that M-EMS enlarged the equiaxed grain regions, refined the grain size and resulted in more homogeneous distribution of the solute elements. The flow field in the mould was simulated to show the M-EMS intensity, which is in accordance with experimental observations. The mechanical properties of the blooms obtained at the current of 300A and frequency of 5 Hz are optimal.
引用
收藏
页码：2173 / 2180
页数：8
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