Metals and Materials International

, Volume 25, Issue 6, pp 1586–1592 | Cite as

Solidification Structure and Segregation of High Magnetic Induction Grain-Oriented Silicon Steel

  • Xin Li
  • Min Wang
  • YanPing BaoEmail author
  • Jian Gong
  • Xianhui Wang
  • Pang Weiguang


The solidification structure and centerline segregation of high magnetic induction grain-oriented silicon steel slabs were studied to describe the characteristics of solidification and compare the degree of centerline segregation of continuously cast slabs. Industrial experiments were conducted to investigate the solidification behavior of slabs by secondary cooling segment electromagnetic stirring. Three typical slabs were produced by S-EMS with current intensities of 0, 200, and 350 A. Molten steel cast at a low stirring intensity (0 A) resulted in a coarse structure relative to those cast at higher stirring intensities (200 and 350 A). The centerline segregation of carbon and silicon markedly increased with increases in S-EMS current intensity. Composition distribution by electron probe microanalysis identified segregation spots as the sources of centerline segregation. Experimental results indicate that to optimize the centerline segregation of grain-oriented silicon steel slabs, the columnar crystal zone should be enlarged and the equiaxed crystal zone be reduced.


High magnetic induction grain-oriented silicon steel S-EMS Solidification structure Segregation 



The authors are grateful for support from the National Science Foundation China (Grant No. 51774031), Open project of state key laboratory of advanced special steel, shanghai university (SKLASS 2017-12), China, and Shougang Qian′an Iron and Steel Company.


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Copyright information

© The Korean Institute of Metals and Materials 2019

Authors and Affiliations

  • Xin Li
    • 1
  • Min Wang
    • 1
  • YanPing Bao
    • 1
    Email author
  • Jian Gong
    • 2
  • Xianhui Wang
    • 2
  • Pang Weiguang
    • 2
  1. 1.State Key Lab of Advanced MetallurgyUniversity of Science and Technology BeijingBeijingChina
  2. 2.Silicon Steel DepartmentShougang Qian′an Iron & Steel CompanyQian′anChina

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