Due to high strength, barrier wear characteristics, resistance to chemical degradation, thermal strength and environmental corrosion security were provided when coated on the surface of designed component, thermal spray barrier coatings are increasing popularity and becoming more appealing on many applications in manufacturing. A greater understanding of their failure mechanisms and a thorough analysis of their performance are needed to characterize the tribological properties of wear-resistant coatings. Throughout this study, Pin on the disc method was used to optimize the thickness of coating suitable to various conditions of the biolubricants and the tribological properties of the HVOF ceramic coatings. The results show that oxides and coating oxidation play a major role during the (Cr3C2 + Alumina) tribological process. At room temperature up to 600 deg/C the volume loss of (Cr3C2 + alumina) coatings in the air is low, suggesting oxidation which prevents the wear. Cr8O will minimize friction and wear and maintain the coating good tribologicalproperties even at 600 °C. Friction promotes the formation of Cr2O3. The coating oxidizes vigorously above 600 deg/C and deteriorates its properties rapidly, causing serious wear. Owing to the gradual formation of oxides wear decreases as the temperature increase. Therefore, oxide coating should not be used in RT or at high temperatures as wear-resistant coating in O deficient environments. The atomic force microscope was used to inspect the topography of the coated surface before and during wear checks. With the help of Field Emission Scanning Electron Microscope worn surface of the coated and uncoated sample was examined. It was observed that that the thickness of the coating prevents thermal wear that however improves abrasive wear. © 2023 Elsevier B.V., All rights reserved.