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A 2D Front-Tracking Lagrangian Model for the Modeling of Anisotropic Grain Growth

Grain growth is a well-known and complex phenomenon occurring during annealing of all polycrystalline materials. Its numerical modeling is a complex task when anisotropy sources such as grain orientation and grain boundary inclination have to be taken into account. This article presents the applicat...

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Autores principales: Florez, Sebastian, Fausty, Julien, Alvarado, Karen, Murgas, Brayan, Bernacki, Marc
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8348018/
https://www.ncbi.nlm.nih.gov/pubmed/34361415
http://dx.doi.org/10.3390/ma14154219
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author Florez, Sebastian
Fausty, Julien
Alvarado, Karen
Murgas, Brayan
Bernacki, Marc
author_facet Florez, Sebastian
Fausty, Julien
Alvarado, Karen
Murgas, Brayan
Bernacki, Marc
author_sort Florez, Sebastian
collection PubMed
description Grain growth is a well-known and complex phenomenon occurring during annealing of all polycrystalline materials. Its numerical modeling is a complex task when anisotropy sources such as grain orientation and grain boundary inclination have to be taken into account. This article presents the application of a front-tracking methodology to the context of anisotropic grain boundary motion at the mesoscopic scale. The new formulation of boundary migration can take into account any source of anisotropy both at grain boundaries as well as at multiple junctions (MJs) (intersection point of three or more grain boundaries). Special attention is given to the decomposition of high-order MJs for which an algorithm is proposed based on local grain boundary energy minimisation. Numerical tests are provided using highly heterogeneous configurations, and comparisons with a recently developed Finite-Element Level-Set (FE-LS) approach are given. Finally, the computational performance of the model will be studied comparing the CPU-times obtained with the same model but in an isotropic context.
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spelling pubmed-83480182021-08-08 A 2D Front-Tracking Lagrangian Model for the Modeling of Anisotropic Grain Growth Florez, Sebastian Fausty, Julien Alvarado, Karen Murgas, Brayan Bernacki, Marc Materials (Basel) Article Grain growth is a well-known and complex phenomenon occurring during annealing of all polycrystalline materials. Its numerical modeling is a complex task when anisotropy sources such as grain orientation and grain boundary inclination have to be taken into account. This article presents the application of a front-tracking methodology to the context of anisotropic grain boundary motion at the mesoscopic scale. The new formulation of boundary migration can take into account any source of anisotropy both at grain boundaries as well as at multiple junctions (MJs) (intersection point of three or more grain boundaries). Special attention is given to the decomposition of high-order MJs for which an algorithm is proposed based on local grain boundary energy minimisation. Numerical tests are provided using highly heterogeneous configurations, and comparisons with a recently developed Finite-Element Level-Set (FE-LS) approach are given. Finally, the computational performance of the model will be studied comparing the CPU-times obtained with the same model but in an isotropic context. MDPI 2021-07-28 /pmc/articles/PMC8348018/ /pubmed/34361415 http://dx.doi.org/10.3390/ma14154219 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Florez, Sebastian
Fausty, Julien
Alvarado, Karen
Murgas, Brayan
Bernacki, Marc
A 2D Front-Tracking Lagrangian Model for the Modeling of Anisotropic Grain Growth
title A 2D Front-Tracking Lagrangian Model for the Modeling of Anisotropic Grain Growth
title_full A 2D Front-Tracking Lagrangian Model for the Modeling of Anisotropic Grain Growth
title_fullStr A 2D Front-Tracking Lagrangian Model for the Modeling of Anisotropic Grain Growth
title_full_unstemmed A 2D Front-Tracking Lagrangian Model for the Modeling of Anisotropic Grain Growth
title_short A 2D Front-Tracking Lagrangian Model for the Modeling of Anisotropic Grain Growth
title_sort 2d front-tracking lagrangian model for the modeling of anisotropic grain growth
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8348018/
https://www.ncbi.nlm.nih.gov/pubmed/34361415
http://dx.doi.org/10.3390/ma14154219
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