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Phase-Field Simulations and Analysis of Effect of Dispersed Particles on Migration of Delta to Gamma Transformation Interface

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Abstract

Retardation effect of dispersed inert particles on delta–gamma interface migration in carbon steels during isothermal delta to gamma transformation is analyzed by two-dimensional phase-field simulations. The effect is systematically investigated for different values of particle radius, r, particle spacing, l, and initial carbon concentration of delta phase. The retardation effect becomes stronger when the pinning parameter described by r/l 2 is larger and the carbon concentration of delta phase is higher, indicating that delta to gamma transformation kinetics can be retarded in a similar way to the pinning effect on grain growth kinetics.

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Authors and Affiliations

  1. Graduate School of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan

    Daisuke Sato (Graduate Student)

  2. Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido, 060-8628, Japan

    Munekazu Ohno (Associate Professor) & Kiyotaka Matsuura (Professor)

Authors
  1. Daisuke Sato
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  2. Munekazu Ohno
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  3. Kiyotaka Matsuura
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Correspondence to Munekazu Ohno.

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Manuscript submitted November 11, 2013.

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Sato, D., Ohno, M. & Matsuura, K. Phase-Field Simulations and Analysis of Effect of Dispersed Particles on Migration of Delta to Gamma Transformation Interface. Metall Mater Trans A 46, 981–988 (2015). https://doi.org/10.1007/s11661-014-2650-1

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