The present paper reports the analysis of wear behavior and surface properties of detonation gun-sprayed composite coating of chromium carbide–nichrome–cerium oxide (Cr3C2–NiCr–CeO2) on boron steel. Experiments were performed to have complete understanding of wear rate and volume loss for the worn out surfaces. X-ray diffraction and scanning electron microscopy analysis were used for phase detection and microstructural characterization. Addition of rare earth metal improves the stickiness and avoids corrosion in the coating. Pin on disc test rig was used for the experimental purpose, and wear rate was calculated at three loads (30 N, 60 N and 90 N) in both dry and lubricating conditions. These tests were done for different cycles (to completely understand the wear behavior). From the results, it could be concluded that in lubrication state when the applied load is less, Cr3C2–NiCr+10% CeO2 coated sample shows the better result as compared to Cr3C2–NiCr+5% CeO2 and uncoated samples.
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