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Prediction of solute trapping at high solidification rates using a diffuse interface phase-field theory of alloy solidification

Boettinger, W.J., Wheeler, A.A., Murray, B.T. and McFadden, G.B. (1994) Prediction of solute trapping at high solidification rates using a diffuse interface phase-field theory of alloy solidification Materials Science and Engineering: A, 178, (1-2), pp. 217-223. (doi:10.1016/0921-5093(94)90546-0).

Record type: Article

Abstract

A phase-field model for solidification of a binary alloy is developed that includes gradient energy contributions for the phase field and for the composition field. When the gradient energy coefficient for the phase field is smaller than that for the solute field, planar steady-state solutions exhibit a reduction in segregation in the liquid phase ahead of an advancing front (solute trapping), and in the limit of high solidification speeds predict alloy solidification with no redistribution of composition. Comparison is made with the Aziz model of solute trapping.

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Published date: 1994
Organisations: Applied Mathematics

Identifiers

Local EPrints ID: 803
URI: http://eprints.soton.ac.uk/id/eprint/803
ISSN: 0921-5093
PURE UUID: 49e00318-86fc-47b5-8ae5-e67bfed684d9

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Date deposited: 25 Mar 2004
Last modified: 17 Jul 2017 17:17

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Contributors

Author: W.J. Boettinger
Author: A.A. Wheeler
Author: B.T. Murray
Author: G.B. McFadden

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