A comprehensive review on the carbide-base coatings produced by thermo-reactive diffusion: microstructure and properties viewpoints
Aliakbar Ghadi, Hossein Ebrahimnezhad‐Khaljiri, Reza Gholizadeh
Abstract
Carbide coatings provide high resistance to wear and corrosion for their substrates, so they have recently received much attention from an industrial point of view. One of the successful methods in creating industrial carbide coatings is the thermo-reactive diffusion (TRD) method. In this review, chromium, vanadium and niobium carbide coatings produced by TRD method were investigated in two ways; single and double coatings. A number of studies on carbide coatings that have been performed since 2000 were collected in this paper and investigated based on the two perspectives of microstructure and surface properties of the coating. Satisfactory data were collected from the research on the input parameters of the coating process and the output results of the coatings, which can be used for industrial applications and future scientific research. Additionally, different coatings were analyzed and compared based on their microstructures, and the relation between different microstructures and coating properties are stated in detail. Also, a future trend for the research in the field of coatings produced by TRD method was suggested.