Effects of Second Phase Particle Dispersion on Kinetics of Isothermal Peritectic Transformation in Fe–C Alloy

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概要

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• Effects of dispersion of insolvable particles on peritectic transformation kinetics in Fe–C binary alloy system have been investigated by means of a model experiment based on a diffusion couple method. During isothermal holding of the diffusion couple of δ and liquid phase samples, the peritectic transformation proceeds by migrations of ferrite(δ)/austenite(γ) interface and liquid(L)/γ interface. It was observed that the existence of insolvable particle, ZrO2, in δ phase retarded the migration of δ/γ interface and also the migration of L/γ interface. The retarding effect by the ZrO2 particles becomes strong as volume fraction of particles increases and/or particle radius decreases, which is qualitatively coincident with the effect of particles on grain growth (Zener pinning). These findings were verified by multi-phase field simulations.

著者

• Ohno Munekazu

  Division Of Material Science And Engineering Graduate School Of Engineering Hokkaido University

• Matsuura Kiyotaka

  Division Of Material Science And Engineering Hokkaido University

• Sato Daisuke

  Graduate School Of Biological Sciences Nara Institute Of Science And Technology

• Chen Liang

  Graduate School Of Engineering Hokkaido University

• MATSUURA Kiyotaka

  Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University

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