Microstructural Characterisation by Scanning Electron Microscopy of Spray Formed Al/SiCp Matrix Composite

E.G. Gomes; J.L. Rossi

doi:10.4028/www.scientific.net/MSF.498-499.251

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HomeMaterials Science ForumMaterials Science Forum Vols. 498-499Microstructural Characterisation by Scanning...

Microstructural Characterisation by Scanning Electron Microscopy of Spray Formed Al/SiC_p Matrix Composite

Abstract:

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.

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Periodical:

Materials Science Forum (Volumes 498-499)

Pages:

251-257

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.498-499.251

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Online since:

November 2005

Authors:

E.G. Gomes, J.L. Rossi

Keywords:

Aluminium Alloy, Composite Material, Silicon Carbide (SiC), Spray Forming

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