ABSTRACT
The second chapter gives an insight into the emerging and rapidly developing methods of protection and restoration of the components made out of both traditional and new materials. Much attention is paid to the additive manufacturing methods and related materials, as well as hybridization with material removal and other forming processes. AM can be applied at different stages of the product lifecycle, thus becoming a key industrial process in the transition from the linear to a circular economy. In terms of protection and reparation of the product along its lifecycle, important methods of protective and technological coatings are presented. The term “nano-coatings” sometimes refers to the thin layers which are in nano dimensions or have substrates in which nanoscale particles have been dispersed and produce special properties, e.g., higher coefficient of thermal expansion, hardness, toughness, higher resistance to corrosion, abrasion, and erosion in comparison to micrometer-scale coating structures. In this context, the following topics are discussed: high-temperature coatings, thermal spray coatings, vacuum plasma spraying, processes of hard alloys coatings, as well as titanium nitride nanoceramic matrix composite coatings.
