Melt Convection
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Transient solidification of hypomonotectic and monotectic A1-Bi alloys / Solidificação transitoria de ligas hipomonotetica e monotetica do sistema A1-Bi
Ligas de alumínio dispersas com bismuto apresentam aplicações promissoras em componentes automotivos resistentes ao desgaste. Essas dispersões de elementos de baixa temperatura de fusão diminuem a dureza e escoam facilmente em condições de deslizamento, resultando em um comportamento tribológico favorável. Muitos estudos têm sido realizados a fim d
Publicado em: 2008
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2. The influence of melt convection on dendritic spacing of downward unsteady-state directionally solidified Sn-Pb alloys
Microstructures are the strategic link between materials processing and materials behavior. A dendritic structure is the most frequently observed pattern of solidified alloys. The microstructural scales of dendrites, such as primary and secondary arm spacings, control the segregation profiles and the formation of secondary phases within interdendritic region
Materials Research. Publicado em: 2006-03
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3. Caracterização da microestrutura dendritica na solidificação vertical descendente de ligas AL-CU / Characterization of dendritic array during downward transient directionally solidified AL-CU alloys
The dendritic spacings are important microstructural parameters, involved in solidification processes. They can affect not only microsegregation profiles but also the formation of secondary phases within interdendritic regions, which influences mechanical properties of cast structures. A small number of studies have been carried out in order to analyze the e
Publicado em: 2004
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4. Desenvolvimento e avaliação de um metodo semi-continuo de fusão zonal e sua aplicação na recuperação de indio / Development and evaluation of a semi-continuous zone melting method and its application on indium recovery
The zone refining process consists of the movement of one or more melted zones along the bar of the material which purification is desired. This purification process presents as variables: solidification rate, thermal gradient in front of the solid/liquid interface, convection imposed to the liquid and relative size of melted zone. The present work aims to i
Publicado em: 1997