Phase-field modeling the effect of misfit on the precipitation of the second-phase particles and grain coarsening

Yongbiao Wang; Liming Peng; Yujuan Wu; Yan Zhao; Yongxin Wang; Yongbing Huang; Wenjiang Ding

doi:10.1016/j.commatsci.2014.10.066

Phase-field modeling the effect of misfit on the precipitation of the second-phase particles and grain coarsening

Yongbiao Wang, Liming Peng, Yujuan Wu, Yan Zhao, Yongxin Wang, Yongbing Huang, Wenjiang Ding

Queen Mary University of London Engineering School

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

9 Scopus citations

Abstract

A modified phase-field model has been used to study the precipitation of the second-phase particles and the coarsening of grains under the influence of lattice mismatch. The elastic strain energy caused by misfit is taken into account, and the force equilibrium equation is solved using the iterative-perturbation method. The simulations show that the morphology of the second-phase particles is significantly influenced by the misfit, and the elastic stress blocks the precipitation of the particles. With the increase of the elastic modulus, the process of grain coarsening changes, and the morphology of the second-phase particle gradually transforms from globular to square and rod. The interactions between solute concentration and the misfit are cooperative, which together control the size of grains.

Original language	English
Pages (from-to)	166-172
Number of pages	7
Journal	Computational Materials Science
Volume	100
Issue number	PB
DOIs	https://doi.org/10.1016/j.commatsci.2014.10.066
State	Published - 1 Apr 2015

Keywords

Coarsening
Misfit
Phase-field model
Precipitation
Simulation

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10.1016/j.commatsci.2014.10.066

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title = "Phase-field modeling the effect of misfit on the precipitation of the second-phase particles and grain coarsening",

abstract = "A modified phase-field model has been used to study the precipitation of the second-phase particles and the coarsening of grains under the influence of lattice mismatch. The elastic strain energy caused by misfit is taken into account, and the force equilibrium equation is solved using the iterative-perturbation method. The simulations show that the morphology of the second-phase particles is significantly influenced by the misfit, and the elastic stress blocks the precipitation of the particles. With the increase of the elastic modulus, the process of grain coarsening changes, and the morphology of the second-phase particle gradually transforms from globular to square and rod. The interactions between solute concentration and the misfit are cooperative, which together control the size of grains.",

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T1 - Phase-field modeling the effect of misfit on the precipitation of the second-phase particles and grain coarsening

AU - Wang, Yongbiao

AU - Peng, Liming

AU - Wu, Yujuan

AU - Zhao, Yan

AU - Wang, Yongxin

AU - Huang, Yongbing

AU - Ding, Wenjiang

PY - 2015/4/1

Y1 - 2015/4/1

N2 - A modified phase-field model has been used to study the precipitation of the second-phase particles and the coarsening of grains under the influence of lattice mismatch. The elastic strain energy caused by misfit is taken into account, and the force equilibrium equation is solved using the iterative-perturbation method. The simulations show that the morphology of the second-phase particles is significantly influenced by the misfit, and the elastic stress blocks the precipitation of the particles. With the increase of the elastic modulus, the process of grain coarsening changes, and the morphology of the second-phase particle gradually transforms from globular to square and rod. The interactions between solute concentration and the misfit are cooperative, which together control the size of grains.

AB - A modified phase-field model has been used to study the precipitation of the second-phase particles and the coarsening of grains under the influence of lattice mismatch. The elastic strain energy caused by misfit is taken into account, and the force equilibrium equation is solved using the iterative-perturbation method. The simulations show that the morphology of the second-phase particles is significantly influenced by the misfit, and the elastic stress blocks the precipitation of the particles. With the increase of the elastic modulus, the process of grain coarsening changes, and the morphology of the second-phase particle gradually transforms from globular to square and rod. The interactions between solute concentration and the misfit are cooperative, which together control the size of grains.

KW - Coarsening

KW - Misfit

KW - Phase-field model

KW - Precipitation

KW - Simulation

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DO - 10.1016/j.commatsci.2014.10.066

M3 - 文章

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SN - 0927-0256

VL - 100

SP - 166

EP - 172

JO - Computational Materials Science

JF - Computational Materials Science

IS - PB

ER -

Phase-field modeling the effect of misfit on the precipitation of the second-phase particles and grain coarsening

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Keywords

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