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 axial static magnetic field (ASMF) 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 18.6 to 90.3 pct when a 50 mT ASMF was applied. The number and size of the inclusions in LMF were also decreased. In addition, the mechanisms of LMF thinning and inclusion removal efficiency improvement enhanced by the ASMF were interpreted in detail. Furthermore, a numerical simulation of the inclusion migration in LMF was also carried out to support the proposed mechanisms to some extent.

中文翻译：

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轴向静磁场对电渣重熔过程中液态熔膜中夹杂物去除的影响

近年来，人们提出了磁控电渣重熔（MC-ESR）工艺来提高夹杂物去除效率。本研究通过一系列MC-ESR实验研究了轴向静磁场（ASMF）对GCr15钢ESR过程中该阶段液态熔膜（LMF）和夹杂物去除的影响。当应用 50 mT ASMF 时，LMF 特征位置的厚度减少了 18.6 至 90.3 pct。LMF 中夹杂物的数量和尺寸也减少了。此外，详细解释了ASMF增强的LMF减薄和夹杂物去除效率提高的机制。此外，还对 LMF 中的夹杂物迁移进行了数值模拟，以在一定程度上支持所提出的机制。