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Information × Registration Number 0225U000027, (0121U110102) , R & D reports Title Development of the latest physico-technological foundations of the creation of multilayer multicomponent nitride or carbonitrine nanostructural coatings and the study of interaction with different materials. Investigation of the formation of complex surface layers with elevated characteristics, which contain Cr, Ti, Zr, HF, and, Si, B, C, Mo using vacuum activated diffuse saturation and gas phase deposition (CVD) on steels, refractory metals and carbon materials for use in space technology, aviation and nuclear industry, mechanical engineering popup.stage_title Дослідження процесів утворення комплексних поверхневих слоїв, що володіють підвищеними характеристиками, що містять Cr, Ti, Si, B, Mo, за допомогою вакуумного активованого дифузійного насичення тугоплавких металів, сталей і вуглецевих матеріалів для використання в космічній техніці та атомної, машинобудуванні. Head Rudenkyi Serhii H., Доктор технічних наукStolbovyi Viacheslav O., Registration Date 02-01-2025 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description1 The purpose of the work is to develop protective coatings to ensure the possibility of functioning of products at elevated temperatures and the influence of destructive effort. Increasing the working temperature of steam turbines, which will increase their efficiency, will assist the improvement of the competitiveness of products produced in our country. These are the parts of steam turbines that operate at a temperature of 520 ° C. It is necessary to increase this temperature to a value of 650 ° C, and it is also desirable to increase the frequency time. Development of heat-resistant coatings to protect the champions of combustion of jet engines of small thrust made from niobium alloys and carbon-carbon composite materials. popup.description2 Research report: 33 pages, 2 figures, 7 tables, 23 references. VACUUM ACTIVATED DIFFUSION SATURATION, PROTECTIVE COATINGS, STEELS, REFRACTORY METALS, CARBON MATERIALS. The aim of the work is to create protective coatings on carbon materials, refractory metals and steels. A heat-resistant coating was created, which is formed by applying a layer of slip of the composition 45W+33Hf+8B+14Ni wt.% to the surface of ARV graphite and subsequent borosilication in sodium chloride vapor. This coating protects ARV graphite from oxidation in air at temperatures from 1600 °C to 1950 °C from 40 to 1 hour. Another composition of the slip is 35HfB2+20ZrSi2+25W+13Ni+7B wt.%. was used to obtain a heat-resistant coating on samples of graphite grade MPG-7 and carbon-carbon composite materials (CCCM). The heat-resistant coating created by this method provides protection at a temperature of T=1700 °C for graphite MPG-7 for 14 hours, and for CCCM for 7 hours. A heat-resistant layer was created on samples of niobium by means of chemical-thermal treatment in a powder mixture [(20-25)Si + (20-24)ZrSi2 + (20-24)HfB2 + (30-35) MoSi2] wt.% and under the action of sodium chloride vapor, which provided protection against oxidation of samples of niobium for 4 to 6 hours at a temperature of T=1700 °C. To increase the corrosion resistance of steel 20Kh1M1F1TR, vacuum activated chromium plating of its surface was carried out. This chemical-thermal treatment of steel samples at a temperature of T=1070 °C and a duration of 6 to 10 hours allows the formation of a surface diffusion layer containing from 87.5 to 93.6 wt.% chromium. After conducting heat resistance tests of chromium-plated samples of this steel at a temperature of T=900 °C, it was found that their corrosion resistance increased from 1300 to 2700 times. Product Description popup.authors Ilchenko Nora S. Andreiev Anatolii O. Barankov Mykhailo I. Bredikhin Mykhailo Yu. Hetman Valentyna F. Zmii Viktor I. Konovalov Ihor I. Kornieiev Oleksandr O. Kryvoshapka Ruslan V. Kunchenko Oleksii V. Kunchenko Yurii V. Мarynin Volodymyr H. Martynenko Liudmyla I. Myroshnychenko Kostiantyn V. Pavlenko Volodymyr I. Rak Vasyl I. Rudenkyi Serhii H. Serdiuk Iryna V. Serchenko Maryna Р. Stolbovyi Viacheslav O. popup.nrat_date 2025-01-02 Close