Experimental Investigation of Mechanical and Tribological Behavior of Graphite Reinforced Aluminum 6061 MMCsPages 430-437
Shuhaib Mushtaq Abstract:
The purpose of this work is to investigate the mechanical and tribological characteristics of Al 6061 Metal Matrix Composites (MMCs) reinforced with graphite. Al6061 MMCs were made using the stir casting method with graphite weight percentages of 5%, 10%, and 15%. The composite's microstructural analysis showed that the reinforcement in the matrix material was distributed uniformly. The microhardness of the aluminum (Al) MMCS's decreased with the increase in Graphite content. In a dry sliding environment, tribological investigations were conducted with a ball-on-disk tribometer. The findings indicate a tendency for the coefficient of friction (COF) and wear rate to decrease as the weight percentage of graphite increases. When compared to the base composition, the composition containing 5% graphite at 20N exhibits the lowest wear rate and COF value.
Keywords: MMCs,
Graphite,
COF,
Tribological testing
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