NiGrFeS HVAF Coating for Cold Rolled Steel Substrate: Microstructure Characteristics and Properties
Year: 2025
Type: article
Abstract: Using air as the oxidizing gas, the High Velocity Air Fuel spray technique, often known as HVAF, sprays high velocity flames. The idea behind this novel approach is to use particle temperatures below or near their melting point while maintaining high particle velocities, allowing for plastic deformation at impact and coating development. In spite of research on HVAF coating having been conducted in the past, the issues of coating quality and surface finish are still a work in progress. According to the authors, this represents the first instance that NiGrFeS has been used for producing HVAF coatings on cold rolled SAE1008 steel designated substrate. This paper demonstrates the characterization of HVAF sprayed NiGrFeS coating on ASTM 1008 cold rolled steel as a substrate to improve surface properties for diversity of applications. A combination of characterization techniques, such as XRD and SEM/EDAX procedures, were used to evaluate the samples. According to their mechanical and microstructural characteristics, the as-deposited coatings are described. Additionally, assessed were the porosity, microhardness, coating thicknesses, and coating density. Microhardness readings have indeed been reported to have decreased from the coating to substrate material. In comparison to traditional coating processes, High-Velocity Air Fuel (HVAF) coating methods provide coatings with superior characteristics.
Authors: G. J. Naveen, P. Sampath Kumaran, A. Sathyanarayanaswamy, P. T. Bindagi, P. G. Mukunda
Language: English
Subfield: Surfaces, Coatings and Films
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4407149239