The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field
File(s)
Accepted version
Author(s)
Kao, A
Cai, B
Lee, PD
Pericleous, K
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.
Date Issued
2017-07-07
Date Acceptance
2015-09-09
Citation
Journal of Crystal Growth, 2017, 457 (1 January 2017), pp.270-274
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/
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000389590700048&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Source
5th European Conference for Crystal Growth (ECCG)
Subjects
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
Coverage Spatial
Bologna, ITALY