This study aims at investigating the effect of heat treatment condition on the dry sliding wear behavior of thermally sprayed Ni-based self-flux alloy coatings. Ni-based self-flux alloy powders were flame-sprayed onto a carbon steel substrate and then...
This study aims at investigating the effect of heat treatment condition on the dry sliding wear behavior of thermally sprayed Ni-based self-flux alloy coatings. Ni-based self-flux alloy powders were flame-sprayed onto a carbon steel substrate and then heat-treated at 700, 800, 900 and 1000℃ for 30 minutes in a vacuum furnace. Dry sliding wear tests were performed using sliding speed of 0.4 m/s and applied load of 6 N. AISI 52100 ball(diameter 8 ㎜) was used as counterparts. Wear behavior of as-sprayed and heat-treated Ni-based self-flux alloy coatings was studied using a scanning electron microscope(SEM) and X-ray diffraction(XRD). It was revealed that microstructure and wear behavior of thermally sprayed Ni-based self-flux alloy coatings were much influenced by heat treatment condition.