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Information × Registration Number 0226U000111, (0124U000763) , R & D reports Title Anhydrous nitriding in a glow discharge in non-stationary power modes to increase the wear resistance and restoration of parts made of steels and titanium alloys of ground and aviation equipment popup.stage_title Безводневе азотування в тліючому розряді в режимах нестаціонарного живлення для підвищення зносостійкості і відновлення деталей зі сталей і титанових сплавів наземної та авіаційної техніки Head Dykha Oleksandr Volodymyrovych, Доктор технічних наук Registration Date 03-01-2026 Organization Khmelnytskyi National University popup.description1 Improvement of physico-chemical-mechanical and tribological characteristics of the surfaces of parts modified in glow discharge and study of the mechanisms of formation of nitrided layers under the influence of autonomous energy parameters of saturation in non-stationary power fields. popup.description2 The object of the research is the processes of hydrogen-free nitriding in a glow discharge using non-stationary power supply for strengthening and restoring steel and titanium alloy components. The aim of the work is to increase the efficiency of forming hardened surface layers through the implementation of an innovative hydrogen-free nitriding technology under cyclically commutated power conditions, which ensures energy controllability of the process and uniform diffusion saturation. A comprehensive approach was applied, combining mathematical and energy modeling of glow discharge processes, numerical thermal modeling of the temperature field in the nitriding chamber, experimental studies of metallographic and tribological properties of modified samples, as well as analysis of the stress–strain state of the surface layers. The design of the equipment for hydrogen-free nitriding with autonomous control of process parameters has been improved, and a cyclically commutated power supply mode has been implemented, providing efficient treatment of both external and internal surfaces of components under stable discharge conditions. A three-dimensional model of the temperature field has been developed, allowing precise regulation of nitriding conditions and control of the energy balance of the process. The influence of the scale factor on the temperature distribution and diffusion kinetics has been determined, enabling adaptation of the technology for components of various sizes and geometries. The results demonstrate a significant improvement in wear resistance, corrosion resistance, and fatigue strength of components operating under variable loading and abrasive wear conditions. The developed technology can be effectively applied for the restoration and surface strengthening of machine parts used in ground and aviation equipment and can be integrated into regulatory documentation for advanced technologies of military and dual-use applications. Product Description popup.authors Pavlo V. Kaplun Myroslav S. Stechyshyn Maksym O. Dykha Oleg M. Makovkin popup.nrat_date 2026-01-03 Close