Advances in Thermally Sprayed WC-Based Wear-Resistant Coatings: Co-free Binders, Processing Routes and Tribological Behavior

Abstract A growing understanding of wear behavior various thermally sprayed ceramic–metallic matrix coatings has occurred over recent years. This resulted from the continuous evolution in spraying methods as well material feedstock, and corresponding new aspects field that have been thoroughly explored. paper aims to review developments tungsten carbide-based coatings, with specific emphasis on evaluating alternative binders, processing routes tribological coatings. comprehensive evaluation compositions binders for WC-based considering environmental concerns market requirements carried out. The properties performance potential alternatives cobalt a conventional binder these assessed. Moreover, different thermal spray reviewed, particularly highlighting role parameters, phase change feedstock characteristics high-velocity oxy-fuel (HVOF) air fuel (HVAF) techniques. comparison is made between HVAF HVOF terms their under environments. Finally, scenarios removal conditions, also reviewed.