Abstract
Mechanical Properties of Cobalt-based Alloy Coating Applied Using High-velocity Oxygen Gas and Liquid Fuel Spraying Processes
Highlights
In the design of mechanical components, material selection is based on the mechanical strength of a given part when it is required to withstand a load
A material applied to the surface of a given part is generally referred to as a coating or a film.[1,2] The thickness of coatings applied by physical vapor deposition (PVD) and chemical vapor deposition (CVD) in aircraft industry applications is usually between 1 and 50 μm
A comparison of the experimental results showed that powder particles sprayed with high-velocity oxygen liquid fuel (HVOLF) flew 1.23 times faster and had 1.33 times greater intensity than those sprayed with high-velocity oxygen gas fuel (HVOGF)
Summary
In the design of mechanical components, material selection is based on the mechanical strength of a given part when it is required to withstand a load. Thermal spraying technology forms significantly thicker coatings with thicknesses of about 50 μm to 5 mm.[3,4] Thermal spraying deposits a coating onto a substrate by heating a powder of metal, ceramic, or cermet to a temperature close to or above its melting point, in order to improve the substrate surface properties. Such coatings can be used to repair parts and extend their service life. A wide range of functional materials are available, and the coatings produced can be used in environments characterized by high-temperature oxidation, corrosion, and abrasion, highlighting the benefits of this technology.[5,6,7]
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