Monte Carlo study on abnormal growth of Goss grains in Fe-3%Si steel induced by second-phase particles

被引:0
作者
Dong-qun Xin
Cheng-xu He
Xue-hai Gong
Hao Wang
Li Meng
Guang Ma
Peng-fei Hou
Wen-kang Zhang
机构
[1] University of Science and Technology Beijing,School of Materials Science and Engineering
[2] Global Energy Interconnection Research Institute,Beijing R&D Center
[3] East China Branch of Central Iron and Steel Research Institute,Department of Electrical Engineering New Materials
[4] Global Energy Interconnection Research Institute,Technical Center
[5] Taiyuan Iron and Steel (Group) Co.,undefined
[6] Ltd.,undefined
来源
International Journal of Minerals, Metallurgy, and Materials | 2016年 / 23卷
关键词
silicon steel; grain growth; second phase particles; Monte Carlo simulation;
D O I
暂无
中图分类号
学科分类号
摘要
The selective abnormal growth of Goss grains in magnetic sheets of Fe-3%Si (grade Hi-B) induced by second-phase particles (AlN and MnS) was studied using a modified Monte Carlo Potts model. The starting microstructures for the simulations were generated from electron backscatter diffraction (EBSD) orientation imaging maps of recrystallized samples. In the simulation, second-phase particles were assumed to be randomly distributed in the initial microstructures and the Zener drag effect of particles on Goss grain boundaries was assumed to be selectively invalid because of the unique properties of Goss grain boundaries. The simulation results suggest that normal growth of the matrix grains stagnates because of the pinning effect of particles on their boundaries. During the onset of abnormal grain growth, some Goss grains with concave boundaries in the initial microstructure grow fast abnormally and other Goss grains with convex boundaries shrink and eventually disappear.
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页码:1397 / 1403
页数:6
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