Mechanical properties of particulate reinforced metal matrix composites by electromagnetic and mechanical stirring and reheating process for thixoforming composites by electromagnetic and mechanical stirring and reheating process for thixoforming

摘要

Both mixing processes of electromagnetic stirring and mechanical process technique were used to fabricate particulate metal matrix composites (PMMCs) for variation of particle size. The PMMCs were tested for their tensile test with and without heat treatment with T6. PMMCs fabrication processing conditions for both electrical and mechanical processes are also suggested. In order to study thixoforming of PMMCs, fabricated billet are reheated by using the optimal coil designed as a function of length between PMMC billet and coil surface, coil diameter, and billet length. The effect of reinforcement distribution on billet temperature variation is investigated with calculated solid fraction theory proposed as a function of matrix alloy and volume fraction of reinforcement.