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Type: Artigo de periódico
Title: Primary dendrite arm spacing during transient directional solidification of Al alloys with low redistribution coefficients
Author: Spinelli, JE
Cruz, KS
Cante, MV
Garcia, A
Abstract: Particular analytical expressions based on a curve fitting on numerical results for primary dendritic growth have been proposed in the literature to encompass binary alloy systems whose redistribution coefficient (k(0)) approaches zero. To date, these expressions have not been checked against experimental results of transient solidification. The present study developed a comparative analysis between the theoretical predictions furnished by such expressions and results from transient solidification experiments with low k(0) aluminum alloys. The analysis has shown that the proposed approach generally describes the primary dendritic spacing during solidification of Al-Sn alloys which are characterized by very low k(0) values as well as by very large solidification ranges.
Subject: casting
aluminum alloys
microstructural characterization
Country: Inglaterra
Editor: Taylor & Francis Ltd
Rights: fechado
Identifier DOI: 10.1080/09500830903292338
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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