This work describes the tribological properties of mono AA6061-10 wt% B 4 C and hybrid AA6061-10 wt% B 4 C-7.5 wt% Gr composites which could be used as a potential substitute for aluminum alloys used in automotive engines. The tribological experiments are performed as per the experimental scheme designed using full factorial design. The results suggest that the wear loss increases with applied load and sliding distance and the friction coefficient increases with increase in applied load. Further, the ANOVA analysis reveals the statistically and physically significant factors which influence the wear loss and friction coefficient. Formation of Gr-rich tribolayer causes reduction in the wear loss and friction coefficient for hybrid composites compared to the mono ones.
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