Plasma nitriding is a method of surface modification using glow discharge technology to introduce nitrogen into the metal, which subsequently diffuses material. The main advantages plasma over conventional processes are: reduced cycle time, controlled growth layer, elimination white distortion, no need finishing, pore-free surfaces and mechanical masks instead copper plating. process especially...

Abstract Surface nitriding has been widely used to improve the surface physicochemical properties of Ti alloys. However, currently utilized methods, such as laser nitriding, typically require expensive and complicated instruments, which makes a less cost-effective process. Meanwhile, antibacterial surface-nitrided alloy implants have not evaluated. Thereafter, in this study, we were aiming deve...

Unalloyed cast iron materials exhibit low tribological and corrosive resistance. In this respect, nitriding has a wide range of applications for steels. the case iron, advantageous properties nitrided layers are impaired by presence graphite. Electron beam remelting surfaces prior to removes The homogeneous ledeburitic microstructure within approx. 1 mm-thick remelted layer enables formation de...

A systematic study was carried out to investigate the potential of manganese nitride related materials for ammonia production. A-Mn-N (A= Fe, Co, K, Li) materials were synthesised by nitriding their oxide counterparts at low temperature using NaNH2 as a source of reactive nitrogen. The reactivity of lattice nitrogen was assessed using ammonia synthesis as a model reaction. In the case of Mn3N2,...

The article examines the technology of nitro-oxidation, which consists nitriding in separated ammonia at first organize and oxidation water vapor second stage process, studied structure phase composition diffusion nitride-oxide layer, providing high physico-mechanical physicochemical surface characteristics, competitively capable galvanic strategies getting a coating, conceivable outcomes regul...

The article is devoted to the analysis of wear resistance diffusion coatings, which were applied by ionic nitriding on steel 40ХН2МА. There a comparison technological efficiency results. parameters modes used in process application are presented, with list equipment and stages. authors conduct comparative chemical composition, microstructure, metallographic tribological studies. They study kine...