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Study on the Motion Behavior of Inclusion Clusters at the Steel–Slag Interface

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Abstract

The separation of inclusions at the steel–slag interface is one of the crucial steps in the removal of inclusions. Thus, it is important to study the motion behavior of inclusions at the steel–slag interface to improve the cleanliness of molten steel. In this paper, irregular inclusion clusters with various morphology were fabricated by three-dimensional printing technology. The molten steel and slag were, respectively, simulated with water and silicone oil, according to the similarity principle, and the physical simulation model of inclusions movement at the steel–slag interface was established. The calculation program for calculating the force and moment of inclusion clusters was developed by ourselves based on the user-defined function in FLUENT, and the three-dimensional dynamic numerical simulation of inclusion clusters was carried out by combining dynamic mesh and overset mesh technology. The motion behavior and movement phenomenon of inclusion clusters at the interface is analyzed. The results show that the inclusion cluster produces the liquid film, flips and slips when separating at the interface. The factors influencing the separation of inclusion clusters at the interface are clarified, which indicates that the fractal dimension and the diameter together govern the motion behavior of the inclusion cluster at the interface.

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Acknowledgments

This work was financially supported by the National Natural Science Foundation of China (No. 51704052) and the Venture & Innovation Support Program for Chongqing Overseas Returnees (cx2019026). In addition, we would also like to thank the assistance of the Financial Support from the Tangshan Science and Technology Bureau for the Fundamental Innovation Team of High-Quality Clean Steel in Tangshan (21130209D) and Hebei Financial Support Project for the Introduced Overseas Student (C20210309).

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On behalf of all authors, the corresponding author states that there is no conflict of interest.

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Authors and Affiliations

  1. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan, 063210, P.R. China

    Yulin Zhu, Tao Li, Min Tan, Guozhang Tang, Zhaoyang **n & Tiantao **ao

  2. College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, P.R. China

    Yulin Zhu, Henan Cui & Min Tan

  3. Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and Advanced Materials, Chongqing University, Chongqing, 400044, P.R. China

    Yulin Zhu, Henan Cui & Min Tan

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  1. Yulin Zhu
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  2. Henan Cui
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  3. Tao Li
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  5. Guozhang Tang
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Correspondence to Tao Li or Min Tan.

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Zhu, Y., Cui, H., Li, T. et al. Study on the Motion Behavior of Inclusion Clusters at the Steel–Slag Interface. Metall Mater Trans B 54, 101–114 (2023). https://doi.org/10.1007/s11663-022-02673-5

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  • DOI: https://doi.org/10.1007/s11663-022-02673-5

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