Effect of flyash particles with aluminium melt on the wear of aluminium metal matrix composites

The present work deals with the fabrication and tribological testing of an aluminium flyash composite. The metal matrix selected was aluminium and flyash contents in different percentages were reinforced in it to fabricate the required metal matrix composite (MMC). Stir casting method was used to fabricate the MMC with 2-4-6% weight of flyash contents in aluminium. Tribological analysis of the tribo pairs formed between the smooth surfaces of cast iron disc and smooth MMC pin has been considered and friction force and wear of the MMC were investigated by using a Pin-on-disc setup. It was observed that the MMC with 6% weight of flyash content in aluminium matrix results in less wear (0.32 g) and 4% weight of flyash content gives the low coefficient of friction (0.12) between the tribopairs of cast iron surface and MMC surface.