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

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Title: Effects of Second Phase Particle Dispersion on Kinetics of Isothermal Peritectic Transformation in Fe–C Alloy
Authors: Chen, Liang Browse this author
Matsuura, Kiyotaka Browse this author →KAKEN DB
Sato, Daisuke Browse this author
Ohno, Munekazu Browse this author →KAKEN DB
Keywords: peritectic transformation
Fe-C system
second phase particles
retarding effect
duffusion couple
multi-phase field
Issue Date: Mar-2012
Publisher: Iron and Steel Institute of Japan
Journal Title: ISIJ International
Volume: 52
Issue: 3
Start Page: 434
End Page: 440
Publisher DOI: 10.2355/isijinternational.52.434
Abstract: 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.
Rights: 著作権は日本鉄鋼協会にある
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 大野 宗一

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