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    9th International Conference on Modeling and Simulation of Metallurgical Processes in Steelmaking - STEELSIM2021

    5–7 Oct 2021 Virtual Conference
    Virtual Conference
    Europe/Vienna timezone

    Conference Secretary

    Modelling of steel-slag-inclusion reactions during refining of Si-Mn killed steel

    6 Oct 2021, 15:10
    20m
    Keynote Primary and secondary metallurgy of steelmaking T_4 Ladle metallurgy and steel refining

    Speaker

    Mr Angshuman Podder (McMaster Steel Research Center, Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario, Canada, ON L8S 4L7)

    Description

    Complex deoxidation by Si and Mn is beneficial for certain steel long products since it leads to the formation of low temperature melting manganese silicates. A better understanding of the mechanisms for inclusion formation in steels deoxidized by these elements need thorough investigation. In this regard, a kinetic model based on diffusion of steel species has been developed for deoxidation type inclusions to study the rate determining steps for steel-inclusion reactions. This model further incorporated the steel/slag coupled reaction model developed by previous researchers at McMaster University to understand the effect of slag-metal reactions on inclusions. The model calculations have been validated using experimental data. Additionally, the influence of process parameters on the composition of inclusions is examined through a parametric study. The results are useful for understanding inclusion dynamics during ladle refining of Si-Mn killed steel.

    Keywords : inclusion; Mn/Si deoxidation; metal-slag-inclusion reaction; kinetic model.

    Authors

    Mr Angshuman Podder (McMaster Steel Research Center, Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario, Canada, ON L8S 4L7) Prof. Kenneth Coley (McMaster Steel Research Center, Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario, Canada, ON L8S 4L7; Department of Mechanical and Materials Engineering, Western University, London, Ontario, Canada, ON N6A 3K7) Prof. Andre Phillion (McMaster Steel Research Center, Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario, Canada, ON L8S 4L7)

    Presentation materials