Effect of particle size, load and speed on the dry sliding wear behavior of Aluminium 8011 - SiC composites

Abstract

In this paper, effect of load, sliding speed, and particle size on the wear behavior of the Al alloy 8011 –SiC composites was evaluated by pin-on –disc wear test rig. Three different particle sizes of SiC (150, 180, 220 mesh) with weight fraction of 6 % reinforced with Aluminium alloy 8011 were fabricated using the stir casting method. Dry sliding wear test was conducted for 10 minutes, three different loads (10, 20, and 30 N) and three different sliding speeds (200, 300, and 400 rpm) to find the wear loss of the composites. Taguchi and ANOVA techniques were used to analyze the contribution of factors on the wear of the composites. From the results it was seen that with the increase in load and sliding speed the wear loss increases. Wear loss is observed more in the Al 8011-SiC composites reinforced with fine particles than the coarse particles. Load is the most prevailing factor followed by sliding speed, and particle size inducing the wear loss of composites.

Keywords

• Load
• Sliding speed
• Particle size
• Taguchi
• ANOVA