Plasma electrolytic nitriding of steels

Abstract

This review deals with the current scientific and technical results of the plasma electrolytic nitriding of constructional steels. The physicochemical features of diffusion saturation from vapor‒gas media are revealed and developed electrolyte compositions and nitriding modes are presented. The structural peculiarities of the nitrided layers and their interrelations with microhardness, strength characteristics, and wear and corrosion resistances are described. The advantages of plasma electrolytic treatment and promising areas for development are noted.