Editor(s): Rafael D. Mercado-Solis and Ewa Kasprzycka
This special issue contains 11 papers dealing with duplex ad multiplex type layers through processes of nitriding, nitrocarburizing, boriding, chromizing, and diffusion titanizing, combined with other technologies, for example, electrolytical treatment or PVD. These papers are dedicated to duplex and multiplex coatings formed on the surface of structural materials in order to enhance their service life.
In the last few years, there has been increasing demands from the industry for further development of surfacing engineering regarding industry regarding service life and reliability of tooling, as well as components that sometimes work in adverse conditions. The research in this special issue proves relevant as these demands can be met through a design of the microstructure of the surface layer of structural materials by way of application of appropriate methods of surface engineering that are aimed at formation of new types of coatings, including duplex and multiplex types.
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