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Type: Artigo de periódico
Title: Modeling dendritic structure and mechanical properties of Zn-Al alloys as a function of solidification conditions
Author: Osorio, WR
Garcia, A
Abstract: In the present article, some important trends have been shown regarding the relationship between mechanical properties, microstructure and solidification variables of Zn-Al alloys castings. Some theoretical dendritic growth models, expressing secondary spacings as function of tip growth rate or local solidification time, have been tested against experimental data obtained during unsteady-state solidification. Based on these dendritic models, on analytical expressions describing the position of solidus and liquidus isotherms in the unidirectional solidification of binary alloys and on experimental results concerning tensile testing of casting samples, expressions have been developed permitting a correlation between ultimate and yield strength, dendrite secondary spacings and solidification processing variables. (C) 2002 Elsevier Science B.V. All rights reserved.
Subject: Zn-Al castings
mechanical properties
dendrite spacings
solidification conditions
Country: Suíça
Editor: Elsevier Science Sa
Rights: fechado
Identifier DOI: 10.1016/S0921-5093(01)01455-1
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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