Study on Structural Behavior of HVOF-Sprayed NiCr/Mo Coating

This study investigates the structural behavior of HVOF-sprayed NiCr/Mo coating. The main objective of the coating is to improve the surface properties such as micro-cutting, cavity, and cracks, to avoid the corrosion, and to determine self-life and wear resistance at room temperature and high temperature also. The coating structures are very sensitive to processing and working conditions, to overcome all these aspects, the surface metal has to undergo microstructure analysis, porosity, microstructure hardness, and X-ray diffraction (XRD), and to improve mechanical properties of metal. HVOF spraying technique was used to deposit the coating on mild steel plate than the coated sample characterized using scanning electron microscope (SEM), X-ray diffraction (XRD), microhardness, microindentation, and wear test. Moreover, we introduce the NiCr/Mo at different percentage levels (5%, 10%, and 15%) to evaluate the mechanical properties, to improve the performance and life span of the fracturing operations in aggressive conditions, which is essential in components replacement and economic savings in various industries such as aerospace, automotive, marine, etc.