Paper number 427
|COMPARISON BETWEEN TI3AL AND NI3AL INTERMETALLICS USED AS REINFORCEMENTS IN ALUMINIUM ALLOY MMCS.|
V. Amigó1, M. D. Salvador1, D. Busquets1, C. Ferrer1
1Departamento de Ingeniería Mecánica y de Materiales. Universidad Politécnica de Valencia Camino de Vera s/n, 46022-Valencia, Spain
|Summary||Aluminium matrix composites reinforced with intermetallics have appeared as very promising materials if a sound interface is achieved. This interface is dependant upon the possible reaction products and interphases that could appear due to the thermal processes implied during fabrication and/or posterior heat treatments, in case the matrix is a high strength heat-treatable alloy. The particulate reinforced aluminium matrix MMCs have been obtained by a combination of powder metallurgy technique and extrusion. This fabrication method guarantees both a good densification of the composite and a homogeneous distribution of the reinforcement in the matrix. Both 2000 and 6000 series aluminium alloys were used as matrix and Ni3Al and Ti3Al intermetallic particles as reinforcements.
||Keywords|| aluminium matrix composite, intermetallics, heat treatment, interface, interphases, powder metallurgy, extrusion.
Theme : Metal Matrix Composites ; Interface and Interphase
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