Heterogeneous precipitation on dislocations: effect of the elastic field on precipitate morphology

Celine Hin; Yves Brechet; Philippe Maugis; Frederic Soisson

doi:10.1080/14786430802235796

Heterogeneous precipitation on dislocations: effect of the elastic field on precipitate morphology

Celine Hin, Yves Brechet, Philippe Maugis, Frederic Soisson

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

14 Citations (Scopus)

Abstract

The shape of a coherent non-misfitting FeC precipitate formed from solute atoms that interact with a dislocation stress field was studied using kinetic Monte Carlo simulation on a rigid lattice. The system studied is a model for binary alloys with an interstitial alloying element similar to Fe-C. The interaction with the dislocation comprises both a short-range chemical term and a long-range deformation field. The effect of each of these terms on precipitate shapes for different C supersaturations was investigated. A simple analytical model is proposed to rationalize the results obtained in the atomistic simulations.

Original language	English
Pages (from-to)	1555-1567
Number of pages	13
Journal	Philosophical Magazine
Volume	88
Issue number	10
DOIs	https://doi.org/10.1080/14786430802235796
Publication status	Published - Apr 2008
Externally published	Yes

Keywords

Dislocation
Elastic field
Equilibrium shape of precipitate
Monte Carlo

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10.1080/14786430802235796

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abstract = "The shape of a coherent non-misfitting FeC precipitate formed from solute atoms that interact with a dislocation stress field was studied using kinetic Monte Carlo simulation on a rigid lattice. The system studied is a model for binary alloys with an interstitial alloying element similar to Fe-C. The interaction with the dislocation comprises both a short-range chemical term and a long-range deformation field. The effect of each of these terms on precipitate shapes for different C supersaturations was investigated. A simple analytical model is proposed to rationalize the results obtained in the atomistic simulations.",

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T2 - effect of the elastic field on precipitate morphology

AU - Hin, Celine

AU - Brechet, Yves

AU - Maugis, Philippe

AU - Soisson, Frederic

PY - 2008/4

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AB - The shape of a coherent non-misfitting FeC precipitate formed from solute atoms that interact with a dislocation stress field was studied using kinetic Monte Carlo simulation on a rigid lattice. The system studied is a model for binary alloys with an interstitial alloying element similar to Fe-C. The interaction with the dislocation comprises both a short-range chemical term and a long-range deformation field. The effect of each of these terms on precipitate shapes for different C supersaturations was investigated. A simple analytical model is proposed to rationalize the results obtained in the atomistic simulations.

KW - Dislocation

KW - Elastic field

KW - Equilibrium shape of precipitate

KW - Monte Carlo

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JO - Philosophical Magazine

JF - Philosophical Magazine

IS - 10

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Heterogeneous precipitation on dislocations: effect of the elastic field on precipitate morphology

Abstract

Keywords

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