Numerical Analysis on Si Deoxidation of Molten Fe, Ni, Fe-Ni, Fe-Cr, Fe-Cr-Ni, Ni-Cu and Ni-Co Alloys by Quadratic Formalism
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概要
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Numerical analysis on Si deoxidation of molten Fe, Ni, Fe-Ni, Fe-Cr, Fe-Cr-Ni, Ni-Cu and Ni-Co alloys have been carried out. The excess Gibbs free energy change of mixing has described with Redlich-Kister type polynomial using the relation derived from Darkens quadratic formalism. Excellent agreement between present work and experimental results was found for equilibrium Si and O contents in molten Fe, Ni, Fe-Ni, Fe-Cr, Fe-Cr-Ni, Ni-Cu and Ni-Co alloys. Si deoxidation equilibrium of not only one component metal but also alloys can be analyzed numerically using the formula determined in the present work. Also, interaction parameters of Redlich-Kister type polynomial can be easily converted into interaction coefficients with Taylors series, which are widely used in steelmaking processes.
- 2005-12-15
著者
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Hino Mitsutaka
Department of Metallurgy, Graduate School of Engineering, Tohoku University
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Hino Mitsutaka
Department Of Metallurgy Faculty Of Engineering Tohoku University
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MIKI Takahiro
Department of Metallurgy, Graduate School of Engineering, Tohoku University
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Miki Takahiro
Department Of Metallurgy Graduate School Of Engineering Tohoku University
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MIKI Takahiro
Department of Hygiene Service, Himeji Livestock Hygiene Service Center, 2-10-16, Tadera-higashi, Himeji, Hyogo 670-0081, Japan
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