Results in Surfaces and Interfaces (Jan 2025)
Advancements in ceramic-coated metals: Enhancing thermal spray coatings for improved performance in aerospace applications using surface treatments
Abstract
Ceramic-coated metals which have superior physical and mechanical properties especially chemical and environmental deterioration resistance and high thermal stability were used formerly in many commercial applications. Thermal spray coatings play a significant role in aerospace, especially because when applied they import positive value on wear and thermal barriers in aspects of an engine part hence better performance and durability on the parts used. Knowledge enhancement of some regulatory parameters of the grit blasting on substrate coat is the objective of this work. From the above results it can be concluded that for the overlay deposit of CoNiCrAlY coatings the CFS appears to be an economic solution which also minimizes the hardware. Oxidation of the particles of powder, which are used in flight, leads to the reduction of tensile strength and the performance characteristics with respect to high-temperature stresses. It has good adhesion and the wear resistance, corrosion and high-temperature stresses of the coatings that are made are improved. Described coatings microstructures in the said coatings were investigated using SEM imaging with elemental mapping of details of their compositions which augmented the results of the adhesive bond strength tests coupled with Vickers hardness tests for the qualitative evaluation of their physical–mechanical properties. Therefore, the result gotten from these micrographs can intern be used to optimize the thermal spray process to enhance on the performance as well as the life span of the coated coatings. From the above-described post processing treatments the application of these treatments increases the service capability of the splats and substrate surface; and that the adhesion of the post processing treatments to the splats and substrate surface is also increased. It therefore adds to the ongoing process of improvement of these processes and there uses by identifying areas where more research can be done.
