A REVIEW ON THE INFLUENCE OF PROCESS PARAMETERS AND HEAT TREATMENT ON THE CORROSION PERFORMANCE OF NI-BASED THERMAL SPRAY COATINGS

Gaurav Prashar () and Hitesh Vasudev
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Gaurav Prashar: School of Mechanical Engineering, Lovely Professional University, Phagwara, Punjab 144411, India
Hitesh Vasudev: School of Mechanical Engineering, Lovely Professional University, Phagwara, Punjab 144411, India

Surface Review and Letters (SRL), 2022, vol. 29, issue 01, 1-18

Abstract: Various typical engineering components fail from surface under aggressive conditions like oxidation and hot corrosion. This paper is focused on the responsible failure mechanism of oxidation and hot corrosion. The surface properties like corrosion resistance can be enhanced by introducing a layer of Ni-based materials by using thermal coating techniques. The coatings developed by using processes like high velocity oxy-fuel, plasma spray and cold spray exhibits some surface defects like porosity, surface roughness and un-melted particles. Such defects can be further minimized by using optimization of process parameters and various heat treatment processes. The current study is restricted to the analysis of Ni-based coatings developed using high velocity oxy-fuel, plasma spray and cold spray process. In this paper, the optimization of various process parameters along with heat treatments has been discussed in regard to the tailoring of microstructure and the mechanical properties of the developed coatings.

Keywords: HVOF; cold spray; plasma spray; heat treatments; process parameters (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1142/S0218625X22300015

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