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Mushy zone coarsening with fluid flow

Kasperovich, G. and Ratke, L. and Steinbach, S. (2009) Mushy zone coarsening with fluid flow. International Journal of Cast Metals Research, 22 (1-4), pp. 151-154. Maney Publishing. DOI: 10.1179/136404609X367560.

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Official URL: http://www.ingentaconnect.com/content/maney/ijcmr/2009/00000022/F0040001/art00037;jsessionid=12be9xxyrk7w3.alice

Abstract

Cylindrical samples of a near-eutectic AlCu30 alloy are annealed applying constant axial temperature gradients to directionally molten samples in an aerogel furnace. During annealing with various times and gradients also a rotating magnetic field (RMF) of 6 mT was applied leading to azimuthal and meridional flows of well known magnitude. The specific surface area of the primary phase was measured on metallographic in section perpendicular to the sample axis with a fixed amount of fraction solid. The specific surface area varies as the inverse cube root of annealing time if no RMF is applied, but varies as an inverse forth root at 6 mT. The experimental procedure and results are presented in detail and compared to isothermal coarsening measurements of Voorhees and co-workers.

Document Type:Article
Title:Mushy zone coarsening with fluid flow
Authors:
AuthorsInstitution or Email of Authors
Kasperovich, G.UNSPECIFIED
Ratke, L.UNSPECIFIED
Steinbach, S.UNSPECIFIED
Date:August 2009
Journal or Publication Title:International Journal of Cast Metals Research
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:22
DOI:10.1179/136404609X367560
Page Range:pp. 151-154
Publisher:Maney Publishing
Status:Published
Keywords:mushy Zone, coarsening, fluid flow, rotating magnetic fields, gradient effects
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Materialwissenschaftliche Forschung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Prof. Lorenz Ratke
Deposited On:20 Aug 2009 14:39
Last Modified:26 Feb 2013 15:03

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