Mullis, AM, Rosam, J and Jimack, PK (2010) Solute trapping and the effects of anti-trapping currents on phase-field models of coupled thermo-solutal solidification. Journal of Crystal Growth, 312 (11). 1891 - 1897. ISSN 0022-0248
Abstract
We explore how the inclusion of an anti-trapping current within a phase-field model of coupled thermo-solutal growth formulated in the thin interface limit actually affects the observed levels of solute trapping during dendritic growth. The problem is made computationally tractable by the use of advanced numerical techniques including local mesh adaptivity, implicit temporal discretization and a multigrid solver. Contrary to published results for pure solutal models we find that the inclusion of such an anti-trapping current does not lead to the recovery of the equilibrium partition coefficient, except in the limit of vanishing growth velocity. At higher growth velocities non-vanishing amounts of solute trapping are observed.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2010 Elsevier B.V. All rights reserved. NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Crystal Growth. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Crystal Growth, 312, 11, (2010) DOI 10.1016/j.jcrysgro.2010.03.009 |
Keywords: | Computer simulation; Dendrites; Growth from melt; Alloys; Binary alloy solidification; Free dendritic growth; Rapid solidification; Fully implicit; Simulation; Computation; Refinement; Melts |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Institute for Materials Research (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Computing (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 18 Mar 2015 16:47 |
Last Modified: | 16 Jan 2018 17:49 |
Published Version: | http://dx.doi.org/10.1016/j.jcrysgro.2010.03.009 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.jcrysgro.2010.03.009 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:83575 |