Adhesive Wear Behavior of FeCr Slag Coating in Water
Y. Kucuk Mustafa Sabri Gök Mecit Oge
AbstractIn this research, adhesive wear behavior of FeCr slag coating in water environment was investigated. FeCr slag coatings, deposited onto AISI 420 stainless steel specimens with atmospheric plasma spray (APS) method, were subjected to adhesive wear tests in aqueous environment using a pin-on-disk tribometer. 7N load, 0,08 m/s sliding speed and 538 m sliding distance were used as sliding wear test parameters. In addition to the SEM analyses of the worn samples, friction coefficient graphs and 3D profilometer measurements were used to evaluate the wear performance of FeCr slag coatings in water environment. Surface wear micrographs of the FeCr slag coating worn under aqueous conditions indicate that, friction induced tribological layer formation is reduced as compared to dry sliding wear test results, and resulting surface cracks led to local spallations. Also, friction coefficient under aqueous conditions was found to be three times lower than the average friction coefficient obtained under dry conditions.