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Information × Registration Number 0223U005766, 0123U100784 , R & D reports Title Increasing the service life and durability of parts of steam distribution units of steam turbines of TPPs and NPPs and hydrogen transportation and storage systems as a component of hydrogen energy based on technological processes of ion-plasma surface modification popup.stage_title Head Bilous Vitalii A., Доктор технічних наук Registration Date 30-12-2023 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description2  As a result of the first stage of the work, the influence of the parameters of the deposition process of protective nitride coatings on hydrogen penetration, mechanical and tribological properties of steels and titanium alloy Ti6Al4V (VT-6) was investigated. The process of complex ion-plasma modification of titanium alloy Ti6Al4V and steel 15Kh12VNMF has been optimized. The study of the tribological properties of the Ti6Al4V alloy and coatings in a pair with an Al2O3 ball showed that TiN and CrN coatings reduce the wear rate of the alloy by one order of magnitude at 20 °C and by two orders of magnitude at 500 °C. Thus, TiN and CrN coatings can be used to increase the wear resistance of Ti-6Al-4V alloy at temperatures from 20 to 500 °C. For the first time, the tribological properties of 15X12VNMF steel with CrN, TiN, and MoN coatings against a steel ball with CrN, TiN, and MoN coatings were studied, which allowed us to determine the friction and wear coefficients of these pairs at temperatures of 20 and 500 °C. According to the complex of properties (friction and wear coefficients), the most promising for increasing the wear resistance in the temperature range of 20-500 °C is the friction pair with CrN-TiN. Compared to the steel pair in its original condition, the complex treatment (nitriding and CrN coating) in combination with TiN coating increases the wear resistance by an order of magnitude at a temperature of 500 °C. It is shown that TiN, CrN and MoN coatings, as well as pre-nitriding of the surface, can reduce hydrogen trapping in titanium alloy Ti6Al4V and steel 15X12VNMFV by an order of magnitude. Product Description popup.authors Efimov Oleksandr A. Ilchenko Valerii S. Ilchenko Oleksandr V. Azarenkov Mykola Oleksiyovych Bilous Vitaliy A. Besedina Yuliya O. Bobrysh Larysa V. Bortnitska Margarita O. Brovin Oleksandr M. Gladkaya Maryna L. Glushich Oleksandr V. Hrigorieva Tamila A. Gryanik Olena V. Dyadkov Volodymyr V. Zagrebel'na Alina S. Zadniprovskiy Yuriy O. Zueva Alla A. Kal’chenko Oleksandr S. Karaseva Lyudmyla M. Karpach Vadim K Karpov Sergiy O. Kolobrodova Oksana M. Kolodiy Igor V. Komar Anatoliy A. Korshenko Vita O. Krainyuk Yevgen O. Kuzina Oksana V. Kuprin Oleksandr S. Lebedeva Olena V. Leonov Sergiy O. Lymar Raisa I. Luzenko Valentyn D. Moskalets Ivan M. Nikitin Arkadii V. Nazarenko Yevhen O Ovcharenko Valeriy D. Opaleva Mariya S. Panasenko Yuriy L. Petrenko Olena L. Pyrozhenko Valentyn I. Reva Sergiy G. Reshetnyak Olena M. Rostanina Yuliya O. Rostova Hanna Yu. Rudenko Olesya P. Sitnyans'ka Tetyana V. Savchenko Andrii M. Savchenko Mykola І. Soshina Oksana A. Spesivzeva Nadiya M. Sukhodol Nadiya L. Tolmachova Galina M. Tolstolutskaya Galina D. Turko Kateryna V. Chala Olena V. Chernykh Lidiya O. Yaies Nataliia А. Yakovlev Georgii A. Yarova Lyubov B. popup.nrat_date 2023-12-30 Close