Researchers from Stony Brook University’s Center for Thermal Spray Research reported in this presentation that cermet coatings applied via high-velocity thermal spray are used in aggressive wear situations and are almost always coupled with corrosive environments.
Despite its widespread use, the technology has lacked generalized scientific principles for robust coating design, manufacturing, and performance analysis. However, advances in process and in situ diagnostics have provided significant insights into the process–structure–property–performance correlations, providing a framework-enhanced design.
In this overview, critical aspects of materials, process, parametrics, and performance were discussed through exemplary studies on relevant compositions. The underlying connective theme is understanding and controlling residual stress generation, which not only addresses process dynamics, but also provides linkage for both system (e.g., fatigue) and the surface (wear and corrosion) performance. This presentation provided an overview of structurally integrated coating design and remanufacturing of components.
Sanjay Sampath, Stony Brook University, Center for Thermal Spray Research
