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Phase-field modeling of multi-phase solidification

Phase-field modeling of multi-phase solidification
Phase-field modeling of multi-phase solidification
A phase-field model for a general class of multi-phase metallic alloys is now proposed which describes both multi-phase solidification phenomena as well as polycrystalline grain structures. The model serves as a computational method to simulate the motion and kinetics of multiple phase boundaries and enables the visualization of the diffusion processes and of the phase transitions in multi-phase systems. Numerical simulations are presented which illustrate the capability of the phase-field model to recover a variety of complex experimental growth structures. In particular, the phase-field model can be used to simulate microstructure evolutions in eutectic, peritectic and monotectic alloys. In addition, polycrystalline grain structures with effects such as wetting, grain growth, symmetry properties of adjacent triple junctions in thin film samples and stability criteria at multiple junctions are described by phase-field simulations.
Phase field, Diffuse interface models, Solidification, Phase transitions, Multi-phase alloy systems, Microstructure simulations
0010-4655
230-233
Nestler, Britta
46cccb65-72a6-4fcb-965d-ac7eab2f5501
Wheeler, Adam A.
eb831100-6e51-4674-878a-a2936ad04d73
Nestler, Britta
46cccb65-72a6-4fcb-965d-ac7eab2f5501
Wheeler, Adam A.
eb831100-6e51-4674-878a-a2936ad04d73

Nestler, Britta and Wheeler, Adam A. (2002) Phase-field modeling of multi-phase solidification. Computer Physics Communications, 147 (1-2), 230-233. (doi:10.1016/S0010-4655(02)00252-7).

Record type: Article

Abstract

A phase-field model for a general class of multi-phase metallic alloys is now proposed which describes both multi-phase solidification phenomena as well as polycrystalline grain structures. The model serves as a computational method to simulate the motion and kinetics of multiple phase boundaries and enables the visualization of the diffusion processes and of the phase transitions in multi-phase systems. Numerical simulations are presented which illustrate the capability of the phase-field model to recover a variety of complex experimental growth structures. In particular, the phase-field model can be used to simulate microstructure evolutions in eutectic, peritectic and monotectic alloys. In addition, polycrystalline grain structures with effects such as wetting, grain growth, symmetry properties of adjacent triple junctions in thin film samples and stability criteria at multiple junctions are described by phase-field simulations.

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Published date: 2002
Keywords: Phase field, Diffuse interface models, Solidification, Phase transitions, Multi-phase alloy systems, Microstructure simulations

Identifiers

Local EPrints ID: 414
URI: http://eprints.soton.ac.uk/id/eprint/414
ISSN: 0010-4655
PURE UUID: 74ecac99-48b2-4bda-a113-29f8b7b96052

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Date deposited: 25 Mar 2004
Last modified: 08 Jan 2022 15:44

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Contributors

Author: Britta Nestler
Author: Adam A. Wheeler

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