A study on Mechanical And tribological Properties of Al Lm6 MMCs Reinforced with Nano SiC, fly ash and Red mud

In this paper; fabrication of aluminum metal matrix composite (MMCs) is prepared by liquid metallurgy route (stir casting technique).The objective of this experimental investigation is to produce two different metal matrix composite (MMCs) specimens using Al Lm6 as a base material which reinforced with silicon carbide, fly ash, red mud whose grain size is in nano size i.e sic-80 nano meter (nm), fly ash-100000 nm or 100 microns (µm), redmud-120000 nm or 120 µm and then studying its mechanical and tribological properties such as tensile strength, impact strength, hardness and wear behavior of produced test specimen. Experiment is conducted by varying weight fraction of sic, fly ash, red mud and then testing its tensile strength, impact strength, hardness, wear behavior. The result reveal that the optimum tensile strength of the hybrid composite is obtained constant as the weight percentage of red mud varies from (2% to 4%) and also results in higher tensile strength. The result also shows that increased in addition of fly ash improve the impact strength and also improve wear resistance.