INVESTIGATION OF TRIBOLOGICAL CHARACTERISTICS OF AL/NANO SiO2 NANOCOMPOSITES PRODUCED BY ACCUMULATIVE ROLL BONDING (ARB) PROCESS

Accumulative roll-bonding process (arb) is an important severe plastic deformation technique forproduction of the ultrafine grained, nanostructured and nanocomposite materials in the form of plates and sheets. inthe present work, this process used for manufacturing al/sio2 nanocomposites by using aluminum 1050 alloy sheetsand nano sized sio2 particles, at ambient temperature. after 8 cycles of arb process, the tribological properties andwear resistance of produced nanocomposites were investigated. the wear tests by abrasion were performed in a pinon-disc tribometer. results show that by increasing arb cycles and the amount of nano powders, the frictioncoefficient of produced nanocomposites decreases.