Parametric Analysis on Non-Lubricated Wear Over Hybrid Aluminium Metal Matrix Composite Material by Rsm

Abstract

The primary focus of this research was to investigate the parameters that influence the wear rate of a hybrid composite material. The parameters used are the percentages of two reinforcements used, applied weight, and sliding velocity. The methodology involves the production of the hybrid composite utilizing the stir casting process. The ASTM G99 standard is used to evaluate the produced composite materials utilizing a pin-on-disc equipment. The testing settings include changing weights of 10 [N], 20 [N], and 30 [N], as well as sliding velocities of 1 [m.s -1 ], 2 [m.s -1 ], and 3 [m.s -1 ] using RSM technique. The obtained results of wear rate for the composite materials were analyzed for the most influencing parameter and it was found that the sliding velocity is the major factor influencing the wear rate followed by applied load. The weight percentage of cenosphere and weight percentage of MoS 2 are least influencing factors in linear terms and the applied load factor was the only factor having influence in square term also. Interaction plot shows the combinational effect of the weight percentage of cenosphere - weight percentage of MoS 2 , weight percentage of MoS 2 – applied load, weight percentage of MoS 2 – sliding velocity and applied load – sliding velocity majorly influencing the wear rate. The weight percentage of cenosphere and MoS 2 found to have a significant influence on the wear behaviour of the composite material even though their percentage contribution is relatively low and the wear rate decreases as the weight percentage of cenosphere and MoS 2 tends to increase.