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Type: Artigo
Title: Length Scale Of The Dendritic Microstructure Affecting Tensile Properties Of Al-(ag)-(cu) Alloys
Author: Duarte
Roberto N.; Faria
Jonas D.; Brito
Crystopher; Verissimo
Nathalia C.; Cheung
Noe; Garcia
Abstract: The dependence of tensile properties on the length scale of the dendritic morphology of Al-Cu, Al-Ag and Al-Ag-Cu alloys is experimentally investigated. These alloys were directionally solidified (DS) under a wide range of cooling rates ((T)over dot), permitting extensive microstructural scales to be examined. Experimental growth laws are proposed relating the primary dendritic arm spacing, lambda(1) to (T)over dot. and tensile properties to lambda(1). It is shown that the most significant effect of the scale of lambda(1) on the tensile properties is that of the ternary alloy, which is attributed to the more homogeneous distribution of the eutectic mixture for smaller lambda(1) and by the combined reinforcement roles of the intermetallics present in the ternary eutectic: Al2Cu and nonequilibrium Ag3Al.
Subject: Metals And Alloys
Tensile Properties
Editor: World Scientific Publ CO PTE LTD
Rights: fechado
Identifier DOI: 10.1142/S0217979215502616
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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