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Type: Artigo
Title: Analysis of the microstructural evolution during the transient upward, downward and horizontal directional solidification of the al-1.2wt%pb monotectic alloy
Author: Konno, Camila Yuri Negrão
Vasconcelos, Angela J.
Barros, André Santos
Silva, Adrina P.
Rocha, Otávio Fernandes Lima da
Garcia, Amauri
Spinelli, José Eduardo
Abstract: Monotectic alloys are of great industrial importance because of their favorable tribological behavior. Many studies in order to better understand the morphologies obtained by monotectic reaction have been developed. To better understand the morphologies obtained by monotectic Al-1.2wt%Pb alloy reaction, especially in relation to induced convective flow, this paper aims to compare the microstructural evolution of the alloy obteind by directional solidification in transient heat-flow conditions in upward, downwand and horizontal solidification devices. It was observed a morphology transition from particles to fibers on upward and downward cases and a morphology of only particles on the horizontal case. The classical relationship used for eutectic growth, λ2v = C, which was considered applicable to monotectic reactions, didn’t seemed to be valid in the interphase spacing evolution for the downward device, however power functions (λ = were found in all cases
Subject: Ligas (Metalurgia)
Country: Suíça
Editor: Trans Tech Publications
Rights: Fechado
Identifier DOI: 10.4028/
Date Issue: 2016
Appears in Collections:FEM - Artigos e Outros Documentos

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