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Microstructure and mechanical properties of an Al–Ni–Co intermetallics reinforced Al matrix composite

By: Suling Cheng; Gencang Yang; Jincheng Wang; Changlin Yang; Man Zhu; Yaohe Zhou;

2009 / Springer Science+Business Media / 0022-2461


A new intermetallic particle reinforced metal matrix composite was produced from pure Al and 15 wt% Al phase is much smaller than that of the original quasicrystalline particles. After extrusion, the composite has a more uniform distribution of the reinforcement particles and eutectic structure as well as a reduced porosity. Tensile tests indicate that the mechanical properties of the as-cast composite are improved over the matrix properties remarkably, except for the ductility. The strength and ductility of the composite can be improved by the hot-extrusion, while the elastic modulus can be slightly decreased.

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