HVOF THERMAL SPRAYING METHOD-PROPERTIES, CHALLENGES, AND OPPORTUNITIES IN BOILER/TURBINE APPLICATIONS: A REVIEW

Abstract

The technique of thermal spray proves invaluable in helping to enhance the surface of solid materials. This specially and versatile process finds application in coating various materials and components, endowing them with increased resistance against wear, erosion, corrosion, abrasion, or heat. Highvelocity oxygen fuel (HVOF) coating is included in the category of most rapidly utilized coating techniques and is very good for making dense coatings at moderate temperatures, boasting reduced porosity (typically < 1%). Industries worldwide have broadly implemented HVOF because of its numerous benefits. This research article offers a comprehensive overview of numerous thermal spray coating techniques, and characteristics are outlined, showcasing the purpose of HVOF deposition in safeguarding materials from deterioration at elevated heat levels in extremely diverse environments. The article also focuses on previous research efforts in the surrounding context of HVOF-sprayed coatings techniques, challenges, advancements, and opportunities in boiler/turbine applications.