Numerical simulation of macrosegregation in billet continuous casting influenced by electromagnetic stirring
作者机构：School of Iron and SteelHigh-Performance Metal Structural Materials Research InstituteSoochow UniversitySuzhou 215021JiangsuChina State Key Laboratory of Advanced MetallurgyUniversity of Science and Technology BeijingBeijing 100083China
出 版 物：《Journal of Iron and Steel Research International》 (Journal of Iron and Steel Research, International)
年 卷 期：2022年第29卷第4期
页 面：612-627页
核心收录：
学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 0702[理学-物理学]
基 金：the China Postdoctoral Science Foundation(No.2018M642308) Jiangsu Planned Projects for Postdoctoral Research Funds(No.2018K068C)
主 题：Numerical simulation Macrosegregation Electromagnetic stirring Continuous casting
摘 要：A three-dimensional numerical model coupling the macrosegregation and magnetohydrodynamic simulations was developed to investigate the effects of electromagnetic stirring(EMS)on the *** results show that a significant swirling flow was induced by the in-mold EMS,which further changed the shape of the solidification shell and homogenized the solute elements in ***,the effects were only confined to the initial billet *** improvement in centerline segregation was observed with the usage of the final EMS(F-EMS),which led to the forced convection at the final solidification *** solute elements in the mushy zone were significantly even,with the maximum segregation degree of solute C reducing from 1.311 to *** addition,the effects of the stirrer positions and currents of F-EMS on the macrosegregation alleviation were numerically *** values of centerline segregation were predicted with various stirrer positions and currents,and there is an optimum stirrer parameter to obtain the best macrosegregation *** the experimental conditions,the optimum position was about 7 m away from meniscus,and the optimum current was 300 A.
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