ABSTRACT
The machinery and equipment performing in the abrasive environment, like sand, soil, ores and dirt, suffer from severe abrasive wear. To prevent such machines and equipment from failure, understanding the low-stress abrasive wear mechanism is requisite. In the present study, the effects of abrading distances, wheel speeds and applied loads on the low-stress abrasion behaviour of LM25-SiCp composite in as-received and after heat treatment state have been investigated by dry abrasion tester as per ASTM G65 standard, and outcomes have been compared to its alloy. The composite has excellent wear properties compared to the base alloy. The abrasive abrasion rate of the materials decreased with increasing abrading distances, whereas the trend was reversed at wheel speed and applied load. The material removal mechanism varies with the wheel speed and applied load. After abrasion, the wear surface of the specimens was analysed by using a field-emission scanning electron microscope to know the materials removal mechanism during the abrasion.
