This study presents the mechanical characterization studies on 3 wt.% graphene
(Gr) filled magnesium matrix composite reinforced with different weight
fractions (4, 8, 12, 16, and 20 wt.%) of titanium carbide (TiC) particles. The
matrix is AZ91 alloy, and the nano magnesium composite (NMC) is fabricated via a
squeeze casting approach. The lightweight NMC is a potential solution for the
automobile industry, as it reduces greenhouse gas emissions and contributes to
environmental sustainability. Gr is added to enhance the composite's thermal
endurance and mechanical strength. Mechanical and corrosion studies are
performed as per the ASTM standards. The inclusion of Gr and 16 wt.% TiC tends
to enhance the mechanical durability and corrosion resilience of the NMC when
compared with other fabricated composites and cast alloys. The uniform dispersal
of NC and TiC and better mould properties lead to better strength. Higher
inclusion of TiC (20 wt.%) leads to brittleness, thereby decreasing the overall
wear loss by resisting abrasive, which lowers the composite's flexibility and
strength. The potential mechanism of adhesive wear is shown by the fact that TiC
and Gr decrease the intimate contact region between the composite and the EN31
counter-disc. Compared with as-cast alloy, AZ91+3%Gr+16%TiC produced 64.31%
higher porosity, 19.50%, 26.69%, 59.45%, and 19.66% higher UTS, micro-hardness,
impact, and flexural strength.