EDSON GARCIA GOMES
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Artigo IPEN-doc 08216 Heat treatment effect on spray formed Al/SiC composite2001 - GOMES, E.G.; ROSSI, J.L.Artigo IPEN-doc 09692 Grain growth and mechanical properties of spray formed Al/SiC composite2003 - GOMES, E.G.; ROSSI, J.L.Artigo IPEN-doc 11217 Microstructural characterisation by scanning electron microscopy of spray formed Al/SiCp matrix composite2005 - GOMES, E.G.; ROSSI, J.L.The material used in this work was produced by spray forming AA7475 aluminium alloy and co-depositing silicon carbide particles (20% volume fraction). The spray formed composite billets were hot extruded into round bars. The microstructure was examined in the as received and heat treated (annealed, aged, and overaged) conditions by scanning electron microscopy. Scanning electron microscopy revealed an extensive Mg2Si phase precipitation at the Al/SiCp interface due probably to Mg segregation from the matrix to the interface, during the heat treatments.