Wear analysis of friction stir processed aluminum composite reinforced by boron carbide

Abstract Friction stir processing is a novel technique of processing used for enhancing the mechanical and tribological properties of materials nowadays. FSP is used to produce defect free metal matrix composites without any flaws and voids. The method found its wide application in the manufacturing of aircrafts, aerospace, submarines etc. In this paper, the investigation of wear properties of the fabricated samples is carried out by using pin-on disc tribometer and it was found that the wear resistance was higher in specimen fabricated at 1600 RPM and at constant feed rate of 30 mm/min. in comparison with 1400, 1500 RPM. In addition to this the coefficient of friction was also found to be efficient on the same parameter. So, 1600 RPM and 30 mm/min. feed rate was the most optimum parameter for friction stir processing of 7075 aluminium alloy reinforced with Boron Carbide (B4C) ceramic particles.