The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field

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Title: The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field
Author(s): Kao, A
Cai, B
Lee, PD
Pericleous, K
Item Type: Conference Paper
Abstract: The mechanism of macrosegregation and modification to dendrite size and spacing from a transverse magnetic field has been modelled through direct numerical simulation. The primary driver for this mechanism was identified as a strong Lorentz force formed in the interdendritic region, which leads to a large scale flow circulation. The microstructure evolution is modified by convective transport of solute and the predicted morphological features compare favourably to experimental data in the literature. The numerical results also give an insight into the magnitude of flow velocities within the interdendritic region.
Publication Date: 7-Jul-2017
Date of Acceptance: 9-Sep-2015
URI: http://hdl.handle.net/10044/1/44198
DOI: https://dx.doi.org/10.1016/j.jcrysgro.2016.07.003
ISSN: 1873-5002
Publisher: Elsevier
Start Page: 270
End Page: 274
Journal / Book Title: Journal of Crystal Growth
Volume: 457
Issue: 1 January 2017
Copyright Statement: © 2016 Elsevier B.V. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Conference Name: 5th European Conference for Crystal Growth (ECCG)
Keywords: Science & Technology
Physical Sciences
Technology
Crystallography
Materials Science, Multidisciplinary
Physics, Applied
Materials Science
Physics
Directional solidification
Crystal structure
Mass transfer
Magnetic fields
Thermoelectric currents
AL-CU ALLOYS
INTERFACE SHAPE
MORPHOLOGY
CONVECTION
Applied Physics
0303 Macromolecular And Materials Chemistry
0306 Physical Chemistry (Incl. Structural)
Publication Status: Published
Start Date: 2015-09-09
Finish Date: 2015-09-11
Conference Place: Bologna, ITALY
Embargo Date: 2017-07-07
Appears in Collections:Faculty of Engineering
Materials



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