MgAl2O4 Inclusion Agglomeration on the Surface of Liquid Steel

Abstract

The aggregation, separation, and agglomeration behaviors of MgAl2O4 inclusions were observed by CLSM. From these observations, it was found that the cavity bridge force between two inclusion particles plays a dominant role in the process of agglomeration, and that the action distance of the cavity bridge force is proportional to the radius of the MgAl2O4 inclusion. Once a stable cavity bridge between two MgAl2O4 particles forms, the aggregated MgAl2O4 inclusion cannot be separated again.

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The authors are grateful to the Natural Science Foundation of China (Grant No. 51874170) and the Open Project Foundation of the Key Laboratory of Electromagnetic Process Material, Northeastern University, China (NEU - EPM - 001) for supporting this work.

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Correspondence to Guocheng Wang.

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Manuscript submitted May 19, 2019.

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Cao, L., Wang, G., Zhao, Y. et al. MgAl2O4 Inclusion Agglomeration on the Surface of Liquid Steel. Metall Mater Trans B 50, 2502–2507 (2019). https://doi.org/10.1007/s11663-019-01688-9

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