Tribological characterisation of thermal sprayed CrC alloyed coating – A review

Abstract

ABSTRACT High-Velocity Oxygen Fuel (HVOF) and Plasma spraying coating procedure are utilised to enhance the properties wear, COF, and corrosion of different mechanical parts. Further, the aim of this review is to the assessment of microstructure and mechanical properties of CrC based compound coatings sprayed by HVOF and plasma spraying strategy onto distinctive substrate materials and to see the capability of CrC based coatings for the piston rings application. The wear and corrosion resistance has expanded because of dispersed components such as Ni and Cr carbide phases present in the coated materials. The HVOF procedure particularly cermet coatings in which powder materials needed to accelerate to store on substrate materials brought high wear and destructive resistance. It was additionally observed that the coating qualities were to a great extent influenced by the properties of the substrate material. The few blends of CrC-based compounds can create great outcomes than WC-Co powder coating. The thermal spray coating procedures and CrC based combinations for the piston ring application have been accounted for like weight reduction and wear rate and COF. It can be expressed that the properties of plasma-sprayed and HVOF sprayed CrC based composite coatings have comparative properties for piston ring application.