INVESTIGATIONS ON THE EFFECT OF FLYASH ON THE SIC REINFORCED ALUMINIUM METAL MATRIX COMPOSITES

摘要

The Al-SiC composites have been prepared by using liquid sand casting technique with aluminium as the base material with 10 % SiC particulates by weight. Flyash content is varied and the abrasive wear study has been conducted on a Pin-on-Disc method. Dry sliding wear characteristics of the samples were investigated in detail. Vicker's microhardness test was carried out for the Al-SiC metal matrix composites. Scanning electron microscopic (SEM) analysis was carried out for the worn out surface to visualize the surface phenomena. The results indicate that the increase in flyash composition increases the wear resistance characteristics. The results have been discussed and are outlined in detail.