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Analysis of solute distribution in dendrites of carbon steel with δ/γ transformation during solidification

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Abstract

Solute distribution in dendrites during solidification of carbon steel was analyzed by unidirectional solidification experiments and mathematical analysis. The characteristic of the mathematical analysis is that diffusion of solutes in solid and redistribution of solutes at solid/liquid andδ/γ interfaces are taken into consideration. Based on the observed and calculated results, it was found that phosphorus was redistributed fromγ-phase toδ-phase, and that manganese was slightly redistributed fromδ-phase toγ-phase. Therefore the concentrated region of phosphorus can be separated from that of manganese duringδ/γ transformation in the case of slow cooling. Moreover, it was concluded that rapid diffusion inδ-phase and the redistribution duringδ/γ transformation played an important role in the variation of the interdendritic concentrations of solutes with lower carbon concentration.

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Authors and Affiliations

  1. R&D Laboratories-I, Nippon Steel Corporation, 1618 Ida Nakahara-ku, 211, Kawasaki, Japan

    Yoshiyuki Ueshima (Research Metallurgist), Shozo Mizoguchi (Senior Research Metallurgist) & Tooru Matsumiya (Research Metallurgist)

  2. R&D Laboratories-III, Nippon Steel Corporation, Edamitsu, Yawatahigashi-ku, 805, Kitakyushu, Japan

    Hiroyuki Kajioka (General Manager)

Authors
  1. Yoshiyuki Ueshima
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  2. Shozo Mizoguchi
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  3. Tooru Matsumiya
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  4. Hiroyuki Kajioka
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Ueshima, Y., Mizoguchi, S., Matsumiya, T. et al. Analysis of solute distribution in dendrites of carbon steel with δ/γ transformation during solidification. Metall Trans B 17, 845–859 (1986). https://doi.org/10.1007/BF02657148

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  • DOI: https://doi.org/10.1007/BF02657148

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