Prediction of solute trapping at high solidification rates using a diffuse interface phase-field theory of alloy solidification
Prediction of solute trapping at high solidification rates using a diffuse interface phase-field theory of alloy solidification
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.
217-223
Boettinger, W.J.
15c73ade-477d-4f65-b1e6-c48e4a612f66
Wheeler, A.A.
eb831100-6e51-4674-878a-a2936ad04d73
Murray, B.T.
03c14953-dddc-4652-b69b-4695f861617e
McFadden, G.B.
56b0d29e-1cfb-4775-96d1-d32d50ea08d2
1994
Boettinger, W.J.
15c73ade-477d-4f65-b1e6-c48e4a612f66
Wheeler, A.A.
eb831100-6e51-4674-878a-a2936ad04d73
Murray, B.T.
03c14953-dddc-4652-b69b-4695f861617e
McFadden, G.B.
56b0d29e-1cfb-4775-96d1-d32d50ea08d2
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), .
(doi:10.1016/0921-5093(94)90546-0).
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
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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: 15 Mar 2024 04:42
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Author:
W.J. Boettinger
Author:
A.A. Wheeler
Author:
B.T. Murray
Author:
G.B. McFadden
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