Semi Solid Alloys
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Semi-solid Sintering of Ti6Al4V/CoCrMo Composites for Biomedical Applications
A composite of Ti6Al4V reinforced with CoCrMo particles is fabricated by conventional powder metallurgy and semi-solid sintering. Composites are fabricated by mixing 20% wt. of CoCrMo reinforcing particles into the Ti6Al4V matrix. Sintering is studied by dilatometry tests between 1050 and 1130 °C and compact characterization is performed by SEM and XRD. Mic
Mat. Res.. Publicado em: 31/01/2019
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2. Effect of Process Parameters on the Microstructure of Semi-solid ZL101 Aluminum Alloy
Aluminum alloy is the important alloy which has been widely used. To reduce waste, it is necessary to thixoform these alloys in near net shape. Semi-solid slurry is the key in process. In this work, the semi-solid slurry of ZL101 aluminum alloy was prepared by using serpentine channel. Effect of process parameters on the microstructure of semi-solid ZL101 al
Mat. Res.. Publicado em: 08/04/2016
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3. Solution and ageing heat treatments of ZK60 magnesium alloys with rare earth additions produced by semi-solid casting
Rare earth elements reportedly improve high temperature strength and creep resistance of Mg alloys. In the present work, ZK60 Mg alloys containing different amounts (0.5, 1.5 and 2.5 wt.%) of rare earth additions were prepared by thixocasting and submitted to solution and ageing heat treatments (T4, T5 and T6). The as-cast and heat treated microstructures we
Mat. Res.. Publicado em: 2014-12
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4. Tixoformabilidade e tixoforjamento de ligas Al-Xwt%Si-0,5wt%Mg em prensa excentrica com matriz aberta / Thixoformability and thixoforming of Al-Xwt%Si-0,5wt%Mg in an accentric press with matrix-type open alloy
Este trabalho apresenta uma análise da viabilidade do emprego de quatro ligas Al- Si-Mg como matéria-prima tixoconformável, e a utilização destas em tixoforjamento em prensa do tipo excêntrica em matriz do tipo aberta. As quatro ligas Al-Si-Mg, com 1, 2, 4 e 7wt%Si e 0,5wt%Mg, foram produzidas por ultra-refino (adição de Al-5wt%Ti- 1wt%B), e a avalia
Publicado em: 2008
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5. Estudo da viabilidade de produção de esponjas da liga A2011 a partir do estado semi-solido / Study of the feasibility of production of A2011 sponges from the alloy in semi-solid state
The work analyses the possibility of the production of cellular material by pressing the A2011 alloy in the thixotropic semi-solid state, into a space holder pre-form. Space holder particles used are NaCl, which are removed from the product after the forming operation, resulting the porous material. It is investigated the influence of the thixoforming temper
Publicado em: 2006
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6. Desenvolvimento do compÃsito Al-5,0Si-1,0Cu/Al203 CaracterizaÃÃo microestrutural e trabalhabilidade
The development of the metal matrix composites (MMC) is considered one of the major innovations of materials in the last thirty years. These new materials are receiving great attention of the researchers in the entire world for diverse industrial applications because of their high mechanical strength, much superior than non-reinforced alloys. The factors tha
Publicado em: 2005
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7. Projeto e construção de equipamento eletromagnetico para a produção de materia-prima para tixoconformação de ligas metalicas / Design and development of an electromagnectic equipment for the production of raw material for thixoforming of metal alIoy
This work relates the design and development of an equipment capable of modifying the morphology of primary phase during solidification of metal alloys, differentiating such structures ftom those dendritic obtained in conventional solidification. In this process turbulence is imposed to the liquid metal by means of a external force with the purpose of modify
Publicado em: 1998