Enhancement of wear resistance of Mild steel with the application of Thermal Spray Coatings of WC-10Co-4Cr
Keywords:
MS, Sliding wear, D-Gun, SEM, thermal spray coatingAbstract
the present paper, it has been proposed to find out the wear resistance of D-Gun coated MS. The specimens
are coated with WC-10Co-4Cr on the steel substrates. The coating was characterized by the SEM/EDS analysis.
Subsequently the wear behaviour of the uncoated, WC-10Co-4Cr coated MS was investigated according to ASTM
Standard G99-03 on a Pin-on-Disc Wear Test Rig. Cumulative wear rate, cumulative wear volume loss were calculated
for the coated, as well as, the uncoated specimens for 30N, 50N and 70N normal loads. SEM/EDS analysis of the worn
surfaces was carried out at IIT, Ropar.
The as-sprayed coatings exhibited typical splat morphology. It has been concluded that the thermal sprayed WC-10Co4Cr coating can be very useful to minimize the wear problem of substrate steel plates. The coatings were found to be
adherent to the substrate steel after the wear tests.