Numerical Simulation of Isothermal Dendritic Growth by Phase-field Model

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著者

    • LEE Jae Sang
    • Department of Metallurgy, School of Engineering, The University of Tokyo
    • SUZUKI Toshio
    • Department of Metallurgy, School of Engineering, The University of Tokyo

抄録

The phase-field model is applied to simulate microstructural evolution during isothermal dendritic growth of the δ-phase in undercooled Fe-C liquid. The parameters of phase-field equation are determined by a thin interface limit condition. Realistic dendritic structures at various temperatures and compositions of the alloy can be obtained using the phase-field model with the thin interface limit condition. The calculated results show various solidification features consistent with our experience. The calculated tip radius, the velocity and the concentration at the interface are compared with the predicted values from the conventional dendritic growth theory using Ivantsov solution and marginal stability criterion.

収録刊行物

  • ISIJ international

    ISIJ international 39(3), 246-252, 1999-03-15

    The Iron and Steel Institute of Japan

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