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Type: Artigo de periódico
Title: Tertiary dendrite arm spacing during downward transient solidification of Al-Cu and Al-Si alloys
Author: Rosa, DM
Spinelli, JE
Garcia, A
Abstract: The microstructural scales of dendrites, such as primary, secondary and tertiary ami spacings, control the segregation profiles and the formation of secondary phases within interdendritic regions, which determine the properties of cast structures. Investigations on tertiary dendritic arms are scarce in the literature, and only a few studies have been conducted in order to analyze the effects of melt convection within the interdendritic region during transient solidification. In this article, the influence of thermosolutal convection on the tertiary dendrite arm spacing is experimentally examined in the downward vertical unsteady-state directional solidification of Al-Cu and Al-Si hypocutectic alloys. (c) 2006 Elsevier B.V. All fights reserved.
Subject: downward solidification
Al-Cu and Al-Si hypoeutectic alloys
dendritic microstructure
Country: Holanda
Editor: Elsevier Science Bv
Citation: Materials Letters. Elsevier Science Bv, v. 60, n. 15, n. 1871, n. 1874, 2006.
Rights: fechado
Identifier DOI: 10.1016/j.matlet.2005.12.040
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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