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Type: Artigo de periódico
Title: Inverse segregation during transient directional solidification of an Al-Sn alloy: Numerical and experimental analysis
Author: Cruz, KS
Ferreira, IL
Spinelli, JE
Cheung, N
Garcia, A
Abstract: In this article macrosegregation phenomenon is investigated by a finite volume numerical modeling technique and by upward unidirectional solidification of an Al-23 wt%Sn alloy casting. The numerical model consists of an explicit/implicit time integration scheme to couple thermal and solutal fields. The experimental solidification set-up allows a vertically aligned macrostructure to be obtained. The concentration profile was obtained by an X-ray fluorescence spectrometry technique carried out in cylindrical slices representing certain position inside the casting from the casting/chill interface. The simulated and experimental temperature and concentration profiles are compared and very good agreement has been observed. (C) 2008 Elsevier B.V. All rights reserved.
Subject: Solidification
Computer modelling and simulation
Country: Suíça
Editor: Elsevier Science Sa
Rights: fechado
Identifier DOI: 10.1016/j.matchemphys.2008.11.037
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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