Abstract
Thermal spray coating is a surface modification technique that improves the properties of the metal surface. The basic principle of this technique is the combination of melting and acceleration. Thermal spray coatings are also classified as plasma spray, High-Velocity Oxy-Fuel, wire arc, detonation, and so on. Among the types of thermal spraying, the high-velocity Oxy-fuel process is a widely used technique in various applications. Chromium and tungsten carbide are used in down-hole drilling tools and gas turbine engines because of high resistance to wear, erosion, cavitation, high hardness, and toughness. In this review article, wear characteristics, corrosion analysis, hardness, surface roughness, and microstructure of thermal sprayed High-Velocity Oxy-Fuel - Tungsten Carbide coatings have been addressed.
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