Enhancement of removing inclusions from liquid melt film during the ESR process assisted by a static magnetic field
Enhancement of removing inclusions from liquid melt film during the ESR process assisted by a static magnetic field
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静磁场辅助 ESR 过程中增强去除液态熔膜中的夹杂物
DOI：
10.1016/j.jmatprotec.2020.116962
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发表时间：
2021-04
影响因子：
6.3
通讯作者：
Yunbo Zhong
中科院分区：
文献类型：
--
作者：
Yifeng Guo;Zhibin Xia;Zhe Shen;Qiang Li;Chuxiong Sun;Tianxiang Zheng;Weili Ren;Zuosheng Lei;Yunbo Zhong
磁控电渣重熔（MC-ESR）是近年来提出的一种提高钢中夹杂物去除率的新工艺。通过一系列的MC-ESR实验，研究了横向静磁场（TSMF）对GCr 15钢电渣重熔过程中液态熔膜（LMF）和夹杂物去除的影响。在65 mT TSMF作用下，由于LMF聚集形成液滴和液滴下落的动力学过程加速，LMF特征位置的厚度减小了27.2%~ 80.5%。此外，TSMF还改善了LMF中夹杂物去除的动力学条件，导致LMF中夹杂物的数量和尺寸减少。对LMF过程中夹杂物的迁移进行了数值模拟，在一定程度上验证了实验结果。
Magnetic-controlled Electroslag Remelting (MC-ESR) process has been proposed to improve the inclusion removal efficiency in recent years. In this study, the effects of transverse static magnetic field (TSMF) on liquid melting film (LMF) and inclusion removal during this period in ESR process of GCr15 steel were studied by a series of MC-ESR experiments. The thickness of the characteristic position of LMF was reduced by 27.2%∼80.5% due to the accelerated dynamic process (LMF aggregating to form droplet and droplet falling) after applying a 65mT TSMF. In addition, the kinetic conditions for inclusion removal in LMF were also enhanced by the TSMF, leading to decrease in the number and size of inclusions in LMF. A numerical simulation of the inclusion migration in LMF was then carried out to verify the experimental results to some extent.
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