<p>Hot corrosion refers to the chemical degradation of alloys at high temperatures in the presence of oxygen and molten salts, which are termed aggressive species. In using equipment or machinery in businesses where equipment is exposed to high temperatures, rust solving is a major challenge. Hot corrosion affects the performance and service life of components, including heat exchanger tubes, boiler tubes, and pipelines, because it has a negative effect on the material used. Therefore, it is imperative to acquire a clear understanding of the causative factors that lead to hot corrosion, alongside a clear understanding of the characteristics of any given alloy under various operating conditions, to obtain a precise estimation, and therefore prediction, of the lifetime of the part and the effort needed to contain the process. TBC coatings are widely used to improve the corrosion protection of the surfaces of alloy and steel parts. The characteristics of the material for which a minimum value of thermal conductivity is required, but at the same time, it causes erosion and is capable of withstanding rapid fluctuations in temperature, are the main focus of this study. These requirements are postulated from theoretical predictions as well as from experimental values provided by the authors. In this study, the focus is shifted to areas that are potentially promising for further research to ensure that constant development continues actively.</p>