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Information × Registration Number 0212U000926, 0110U004563 , R & D reports Title Development of forming technology of functional surface layers on the details of fastening from the VT22 titanium alloy for providing of enhanced performance level popup.stage_title Head Fedirko Victor, Registration Date 06-06-2012 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 Optimized phase composition of the modified layer on the results of research on fretting corrosion. Found that for all indices showed the best results oxy-nitride layers. The greatest fretting resistance in a pair of friction "VT22 alloy - and D16T alloy" provides a combination of oxy-nitration of applying antifriction coating based on MoS2 VAP-2. Results of studies of complex samples alloy VT22 after strengthening heat treatment, combined with the formation of oxy-nitride films during aging, showed that this treatment does not affect short-term strength and ductility of the metal, but at 10 ... 15% reduction in fatigue strength under rotating bending. There is a positive influence oxy-nitration of corrosion resistance under conditions of contact corrosion VT22 - D16 in the "acid rain" and antifriction properties of the metal surface, and additional application layer of VAP-2 enhances these characteristics (corrosion current density decreases almost an order of magnitude as the coefficient of friction on 25 ... 35%). Studies have shown positive effects of surface modification (oxy-nitration) on physico-mechanical properties (fretting resistance, wear, corrosion resistance) products of VT22 titanium alloy rods produced by the IMF developed in Nano technology, thermomechanical treatment to establish a fine-grained globular structure of metal. The proposed scheme of oxy-nitration of VT22 alloy combined with aging in a single technological cycle to ensure the balance of strength, fatigue, tribological and corrosion properties at a specified level. Product Description popup.authors Лук'яненко Олександр Геннадійович Пічугін Анатолій Тимофійовмич Погрелюк Ірина Миколаївна popup.nrat_date 2020-04-02 Close