A thermal fluid dynamics framework applied to multi-component substrates experiencing fusion and vaporisation state transitions

Abstract

The fluid dynamics of multi-component alloy systems subjected to high energy density sources of heat largely determines the local composition, microstructure, and material properties. In this work a multi-component thermal fluid dynamics framework is presented for the prediction of alloy system development due to melting, vaporisation, condensation and solidification phenomena. A volume dilation term is introduced into the continuity equation to account for the density jump between liquid and vapour species, conserving mass through vaporisation and condensation state changes. Mass diffusion, surface tension, the temperature dependence of surface tension, buoyancy terms and latent heat effects are incorporated. The framework is applied to describe binary vapour collapse into a heterogeneous binary liquid, and a high energy density power beam joining application; where a rigorous mathematical description of preferential element evaporation is presented.

Metadata

Item Type:	Article
Authors/Creators:	Flint, T.F. https://orcid.org/0000-0002-0615-8621 Scotti, L. Basoalto, H.C. Smith, M.C.
Copyright, Publisher and Additional Information:	© The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Keywords:	Applied mathematics; Coarse-grained models; Fluid dynamics; Metals and alloys
Dates:	Published: 3 November 2020 Published (online): 3 November 2020 Accepted: 6 October 2020
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	30 Mar 2023 13:30
Last Modified:	30 Mar 2023 13:30
Published Version:	http://dx.doi.org/10.1038/s42005-020-00462-7
Status:	Published
Publisher:	Springer Science and Business Media LLC
Refereed:	Yes
Identification Number:	10.1038/s42005-020-00462-7
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:197850

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A thermal fluid dynamics framework applied to multi-component substrates experiencing fusion and vaporisation state transitions

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