EFFECTS OF COUNTERPART MATERIALS ON WEAR BEHAVIOR OF THERMALLY SPRAYED Ni-BASED SELF-FLUX ALLOY COATINGS

Abstract

This study aims at investigating the wear behavior of thermally sprayed Ni -based self-flux alloy coatings against different counterparts. Ni -based self-flux alloy powders were flame-sprayed onto a carbon steel substrate and then heat-treated at temperature of 1000 °C. Dry sliding wear tests were performed using the sliding speeds of 0.2 and 0.8 m/s and the applied loads of 5 and 20 N. AISI 52100, Al 2 O 3, Si 3 N 4 and ZrO 2 balls were used as counterpart materials. Wear behavior of Ni -based self-flux alloy coatings against different counterparts were studied using a scanning electron microscope(SEM) and energy dispersive X-ray spectroscopy (EDX). It was revealed that wear behavior of Ni -based self-flux alloy coatings were much influenced by counterpart materials.