Analysis of the microstructural evolution during the transient upward, downward and horizontal directional solidification of the al-1.2wt%pb monotectic alloy
Camila Yuri Negrão Konno, Angela J. Vasconcelos, André Santos Barros, Adrina P. Silva, Otávio Fernandes Lima da Rocha, Amauri Garcia, José Eduardo Spinelli
ARTIGO
Inglês
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...
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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 = C.va) were found in all cases
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Fechado
Garcia, Amauri, 1949-
Autor
Analysis of the microstructural evolution during the transient upward, downward and horizontal directional solidification of the al-1.2wt%pb monotectic alloy
Camila Yuri Negrão Konno, Angela J. Vasconcelos, André Santos Barros, Adrina P. Silva, Otávio Fernandes Lima da Rocha, Amauri Garcia, José Eduardo Spinelli
Analysis of the microstructural evolution during the transient upward, downward and horizontal directional solidification of the al-1.2wt%pb monotectic alloy
Camila Yuri Negrão Konno, Angela J. Vasconcelos, André Santos Barros, Adrina P. Silva, Otávio Fernandes Lima da Rocha, Amauri Garcia, José Eduardo Spinelli
Fontes
Materials science forum (Fonte avulsa) |