AN INVESTIGATION ON ABRASIVE WEAR BEHAVIOUR OF Fe-C-Mo-FeCr COMPOSITE PRODUCED BY POWDER METALLURGY

Abstract

In this study, the effect of chromium carbide (Cr7C3) on abrasive wear behavior of Fe-C-Mo-FeCr composite was investigated. Composite, which was produced by a powder metallurgy route was containing 3 wt.% Mo, 1.5 wt. % C and 4,8,12 wt. % FeCr with the different particle sizes. In the experiments, wear resistance of samples were determined using different loads by a pin on disc wear tester. Microstucture of samples were examined by an optical and scanning electron microscopy, EDS and X-Ray diffraction methods. The hardnesses of samples were measured in RB scale. Finally, it has been found that with the increasing particle size of reinforcing element, wear resistance decreased and with the increasing reinforcing element, the wear resistance increased.