Pinning of grain boundary migration by a coherent particle

Nan Wang; Youhai Wen; Long Qing Chen

doi:10.1080/09500839.2014.978408

Pinning of grain boundary migration by a coherent particle

Nan Wang^*, Youhai Wen, Long Qing Chen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We studied single-particle pinning of grain boundary (GB) migration during grain growth. A phase-field model was formulated to simulate the pinning by a coherent particle and validated quantitatively by comparison with analytical prediction. A study of GB migration velocity using this model revealed that second-phase coherent particles have a previously unknown restraining effect over the whole of the GB-particle interaction range, which is qualitatively different from the interaction between GB and incoherent particles.

Original language	English
Pages (from-to)	794-802
Number of pages	9
Journal	Philosophical Magazine Letters
Volume	94
Issue number	12
DOIs	https://doi.org/10.1080/09500839.2014.978408
State	Published - 2 Dec 2014
Externally published	Yes

Keywords

coherent precipitate
grain boundary pinning
grain growth
phase-field

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10.1080/09500839.2014.978408

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abstract = "We studied single-particle pinning of grain boundary (GB) migration during grain growth. A phase-field model was formulated to simulate the pinning by a coherent particle and validated quantitatively by comparison with analytical prediction. A study of GB migration velocity using this model revealed that second-phase coherent particles have a previously unknown restraining effect over the whole of the GB-particle interaction range, which is qualitatively different from the interaction between GB and incoherent particles.",

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AU - Wen, Youhai

AU - Chen, Long Qing

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N2 - We studied single-particle pinning of grain boundary (GB) migration during grain growth. A phase-field model was formulated to simulate the pinning by a coherent particle and validated quantitatively by comparison with analytical prediction. A study of GB migration velocity using this model revealed that second-phase coherent particles have a previously unknown restraining effect over the whole of the GB-particle interaction range, which is qualitatively different from the interaction between GB and incoherent particles.

AB - We studied single-particle pinning of grain boundary (GB) migration during grain growth. A phase-field model was formulated to simulate the pinning by a coherent particle and validated quantitatively by comparison with analytical prediction. A study of GB migration velocity using this model revealed that second-phase coherent particles have a previously unknown restraining effect over the whole of the GB-particle interaction range, which is qualitatively different from the interaction between GB and incoherent particles.

KW - coherent precipitate

KW - grain boundary pinning

KW - grain growth

KW - phase-field

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JO - Philosophical Magazine Letters

JF - Philosophical Magazine Letters

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Pinning of grain boundary migration by a coherent particle

Abstract

Keywords

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