Influence of aluminum oxides on abrasive wear resistance of Fe–50 at.% Al intermetallic sinters

This paper presents the influences of processing parameters on the tribological properties of Fe–50 at.% Al intermetallics obtained by sintering in the presence of liquid phase elemental Fe and Al powders. The wear resistance of FeAl under dry sliding against C45QT steel under ambient conditions was studied in a pin-on-disc contact configuration. Although processing parameters such as sintering temperature and homogenization time had an effect on the wear resistance of FeAl intermetallics, the particle size of Al2O3 oxides derived from oxidized aluminum and iron powders and formed during sintering had the greatest influence.