355-365In modernistic years, Metal Matrix Composites (MMCs) are becoming enchanting in fields of aerospace, military,
defence and automobile applications reason being they offer merit such as high strength to weight proportion, good
tribological, good corrosion resistance, excellent fatigue and creep performance and good bending behaviour etc. In the
current research, an attempt was made to synthesize AA7075 blended with distinct wt% of Titanium (Ti), Tantalum Carbide
(TaC) and Silicon Nitride (Si3N4) multi hybrid MMCs were examined. Microstructural, flexural, corrosion and low cycle
fatigue aspects of the developed multi hybrid MMCs were examined as per ASTM standard. The brittleness of Si3N4, TaC
and Ti particulates structured with the interface betwixt matrix culminates in increment in the flexural strength of the
composite. The bending analysis clearly shows that, TaC and Si3N4 are the major contributing materials for flexural aspect
because the presence of hard ceramic particulates restricts the dislocation movement by providing additional strength.
Microstructural analysis reveals the existence of reinforcements. Also, homogeneous dissemination and good interfacial
bonding betwixt the matrix and reinforcement particulates were noticed. AA7075 reinforced with 1 wt% Ti, 6 wt% Si3N4
and 0.5 wt% TaC operated at higher load (1500 N) and higher number of cycles 14103 cycles with a stable strain rate. The
number of cycles to failure was observed to be enhanced for the matured composites on account of an inconsequential
percentage of induced plastic strain