Abstract
ABSTRACTIn this study, the formation and characterisation of Aluminium (Al)-based composites by mechanical alloying and hot extrusion were investigated. Initially, the vanadium trialuminide (Al3V) particles with nanosized structure were successfully produced by mechanical alloying and heat treatment. Al3V–Al2O3 reinforcement was synthesised by mechanochemical reduction during milling of V2O5 and Al powder mixture. In order to produce composite powders, reinforcement powders were added to pure Al powders and milled for 5 h. The composite powders were consolidated in an extrusion process. The results showed that nanostructured Al-10 wt-% Al3V and Al-10 wt-% (Al3V–Al2O3) composites have tensile strengths of 209 and 226 MPa, respectively, at room temperature. In addition, mechanical properties did not drop drastically at temperatures of up to 300°C.
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