Wear resistance of Fe–28Al–3Cr intermetallic alloy under wet conditions

Wear behaviour of iron aluminides (Fe–28Al–3Cr at.%) alloy has been investigated under wet conditions using ball on plate sliding wear tester. Wear resistance was examined against tungsten carbide (WC) ball sliding over the iron aluminide plate at room temperature. Wear tests were carried out at 3 N and 5 N load conditions at different sliding frequency of mating ball. The micromechanisms responsible for wear were identified to be microcutting, micropitting, and microcracking of deformed subsurface zones under wet conditions.