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A combined Numerical and Experimental Study of the Effects of Controlled Fluid Flow on Alloy Solidification

Steinbach, Sonja and Ratke, Lorenz and Dagner, Johannes and Friedrich, Jochen and Hainke, Marc (2006) A combined Numerical and Experimental Study of the Effects of Controlled Fluid Flow on Alloy Solidification. In: Materials Science Forum, 519-521, pp. 1753-1758. Trans Tech Publications, Switzerland. International Conference on Aluminum Alloys (ICAA-10), 2006-07-09 - 2006-07-13, Vancouver, Canada. ISBN 0-87849-408-1. ISSN 0255-5476

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Official URL: http://www.scientific.net

Abstract

A quantitative understanding of the effect of fluid flow on the microstructure of cast alloys is still lacking. The application of time dependent magnetic fields during solidification offers the possibility to create defined flow conditions in solidification processing. The effect of rotating magnetic fields (RMF) on the microstructure formation in cast Al-alloys (Al-7wt.%Si, Al-7wt.%Si-0.6wt.Mg) is studied experimentally and numerically. The forced fluid flow conditions result in pronounced macrosegregation effects and affect microstructural parameters. With increasing fluid flow the primary dendrite spacing decreases whereas the secondary dendrite arm spacing increases. The experimental analysis is supported by a rigorous application of numerical modeling with the software package CrysVUn.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:A combined Numerical and Experimental Study of the Effects of Controlled Fluid Flow on Alloy Solidification
Authors:
AuthorsInstitution or Email of Authors
Steinbach, SonjaUNSPECIFIED
Ratke, LorenzUNSPECIFIED
Dagner, JohannesFraunhofer Institut für Integrierte Schaltungen, Crystal Growth Laboratory, Erlangen
Friedrich, JochenFraunhofer Institut für Integrierte Schaltungen, Crystal Growth Laboratory, Erlangen
Hainke, MarcSiemens AG, Erlangen
Date:2006
Journal or Publication Title:Materials Science Forum
Refereed publication:Yes
In ISI Web of Science:No
Volume:519-521
Page Range:pp. 1753-1758
Editors:
EditorsEmail
Poole, W. J.UNSPECIFIED
Wells, M. A.UNSPECIFIED
Lloyd, D. J.UNSPECIFIED
Publisher:Trans Tech Publications, Switzerland
ISSN:0255-5476
ISBN:0-87849-408-1
Status:Published
Keywords:directional solidification, AlSi-alloys, rotating magnetic field, macrosegregation
Event Title:International Conference on Aluminum Alloys (ICAA-10)
Event Location:Vancouver, Canada
Event Type:international Conference
Event Dates:2006-07-09 - 2006-07-13
Organizer:Department of Materials Engineering, The University of British Columbia, Canada
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 Materialforschung unter Mikro-g (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Institute of Space Simulation > Center for Solidification of Undercooled Melts (ZEUS)
Deposited By: Dr.rer.nat. Sonja Steinbach
Deposited On:26 Feb 2007
Last Modified:27 Apr 2009 12:59

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