Tribological characteristics of samples made from titanium alloy VT5 nitrided in plasma glow discharge Alex Sagalovych, , Vladislav Sagalovych, Viktor Popov, Stanislav Dudnik, Oleksandr Olijnyk, , and Tribology and Materials, 2022 The effect of nitriding of VT5 alloy (3.7115) in the plasma of a glow discharge excited in a hollow cathode on its tribological characteristics in pairs with different materials in jet fuel TS-1 and under dry sliding conditions has been studied. For research and tribological tests, samples of VT5 alloy were nitrided in the plasma of a glow discharge excited in a hollow cathode at a temperature of 975 ± 15 °C and a pressure of 58 ± 2 Pa in a nitrogen-argon gas mixture with a nitrogen content of 78 vol. %. Tribological tests were performed on a friction machine 2070 SMT-1 according to the scheme "cube-roller". Tests under conditions of sliding with jet fuel TS-1 were performed at a load of 200 N. The sliding speed during the tests was 1.3 m/s, and the test time was 75 s. The test under dry sliding conditions was carried out at a load of 100 N and a sliding speed of 0.785 m/s. The test time was 30 minutes. It is shown that the nitrided VT5 alloy in friction pairs with several materials has rather low wear values (≤ 2.26 × 10–6 mm3/Nm), as well as a coefficient of friction at the level of 0.08 to 0.12.
Vacuum-plasma multilayer protective coatings for turbine blades Alex Sagalovych, Vlad Sagalovych, Victor Popov, Stas Dudnik Vacuum Plasma Multilayer Protective Coatings for Turbine Blades, 2021 The methods of creating the advanced nanomaterials and nanotechnologies of functional multicomponent coatings Avinit (mono- and multilayer, nanostructured, gradient) to improve the performance of materials, components and parts are considered. The vacuum-plasma nanotechnologies Avinit were developed based on the use of gas-phase and plasma-chemical processes of atomic-ionic surface modification and the formation of nanolayer coatings in the environment of non-steady low-temperature plasma. Considerable attention is paid to the equipment for application of functional multilayer composite coatings: an experimental-technological vacuum-plasma automated cluster Avinit, which allows to implement complex methods of coating, combined in one technological cycle. The information about the structure and service characteristics of Avinit coatings has a large place. The results of metallographic, metallophysical, tribological investigations of properties of the created coatings and linking of their characteristics with parameters of sedimentation process are described. The possibilities of parameters processes regulation for the purpose of reception of functional materials with the set physicochemical, mechanical complex and other properties are considered. The investigation of creating of multilayer protective surface coatings Аvinit based on Ti-TiN for turbine blades by vacuum-arc method was carried out. The influence of different methods and modes of vacuum-plasma treatment of coated surface of substrates to the adhesion value of nanolayer protective TiTiN coatings is studied. On the basis of carried out investigations the technology of coating the steam turbines blades for protection against flow-accelerated corrosions is developed. The issues of development and industrial implementation of the latest technologies for applying wear-resistant antifriction coatings Avinit with the use of nanotechnology to increase the life of various critical elements of steam and nuclear turbines are covered in detail. The book is aimed at specialists working in the field of ion-plasma surface modification of materials and functional coatings application. Keywords Vacuum plasma multilayer protective coatings Avinit, titanium, titanium nitride, turbine blades, development of nanotechnologies Avinit.
Avinit vacuum-plasma technologies in transport machine building Alex Sagalovych, Vlad Sagalovych, Victor Popov, Stas Dudnik, Oleksander Olijnyk Avinit Vacuum Plasma Technologies in Transport Machine Building, 2021 Transport engineering is one of the areas in which coatings for various functional purposes are widely used. Among the many methods used for coating, the group of vacuum-plasma methods occupies one of the leading directions in the field of obtaining coatings with unique characteristics that make it possible to significantly increase the operational characteristics of machines and mechanisms lay down new design solutions for their improvement. The monograph presents the results of the development and practical implementation of new nanomaterials and nanotechnologies for the deposition of Avinit coatings for various functional purposes. A distinctive feature of the presented developments is the integrated use of various vacuum-plasma and plasma-chemical coating methods (vacuum-arc, magnetron), vacuum-plasma processing and diffuse surface saturation. The experimental and technological equipment created for this – the Avinit vacuum-plasma automated cluster – makes it possible to implement various methods of coating deposition, combined into one technological cycle. In the monograph, much attention is paid to the results of experimental studies of obtaining coatings of various compositions and the study of their tribological characteristics in friction pairs with such coatings, as well as other properties. The issues of stability of characteristics of coatings in time are considered, as well as the criteria for such stability. Based on the research carried out, a number of experimental industrial technologies for applying coatings for various functional purposes (reinforcing anti-seize, protective) on parts of transport engineering (pistons and rings of internal combustion engines, fuel equipment, etc.) have been developed, examples of the successful application of the developed technologies in mass production are given. aeronautical and other purposes The monograph also discusses the issues of creating highly efficient tools for processing machine parts and mechanisms, including with precision accuracy, and presents the results of developments in this area. The book is intended for specialists working in the field of ion-plasma modification of the surface of materials and the application of functional coatings on parts of transport engineering and other industries.
Improving the performance, reliability and service life of aviation technology products based on the innovative vacuum-plasma nanotechnologies for application of avinit functional coatings and surfaces modification Viktor Popov, Alex Sagalovych, Vlad Sagalovych Improving the Performance Reliability and Service Life of Aviation Technology Products Based on the Innovative Vacuum Plasma Nanotechnologies for Application of Avinit Functional Coatings and Surfaces Modification, 2020 The methods of creating the advanced nanomaterials and nanotechnolo-gies of functional multicomponent coatings Avinit (mono- and multilayer, nano-structured, gradient) to improve the performance of materials, components and parts of aerotechnical purposes are considered. The vacuum-plasma nanotechnologies Avinit were developed based on the use of gas-phase and plasma-chemical processes of atomic-ionic surface modifi-cation and the formation of nanolayer coatings in the environment of nonsteady low-temperature plasma. Considerable attention is paid to the equipment for application of functio-nal multilayer composite coatings: an experimental-technological vacuum-plas-ma automated cluster Avinit, which allows to implement complex methods of coating (plasma-chemical CVD, vacuum-plasma PVD (vacuum-arched, magne-tron), processes of ionic saturation and ionic surface treatment, combined in one technological cycle. The information about the structure and service characteristics of Avinit coatings has a large place. The results of metallographic, metallophysical, tribological investigations of properties of the created coatings and linking of their characteristics with pa-rameters of sedimentation process are described. The possibilities of parameters processes regulation for the purpose of reception of functional materials with the set of physicochemical, mechanical complex and other properties are considered. The issues of development of experimental-industrial technologies Avinit and industrial implementation of the developed technological processes to increase of operational characteristics of aerotechnical products are addressed in detail. Attention is paid to the development prospects of vacuum-plasma nano-technologies Avinit and expansion of these methods applications in mechanical engineering, aviation, power-plant industry, space industry and other fields of science and technology. The book is aimed at specialists working in the field of ion-plasma surface modification of materials and functional coatings application.
DEVELOPMENT OF THE CHEMICAL VAPOR DEPOSITION PROCESS FOR APPLYING MOLYBDENUM COATINGS ON THE COMPONENTS IN ASSEMBLY AND ENGINE CONSTRUCTION Alex Sagalovych, Viktor Popov, Vlad Sagalovych, Stas Dudnik, Roman Popenchuk Eastern European Journal of Enterprise Technologies, 2020 The process of chemical vapor deposition of Mo and Mo-С coatings was studied by means of thermal decomposition of molybdenum hexacarbonyl. The kinetics of the coating growth in the range of 480 °C–540 °C and the pressure in the reaction volume from 9 Pa to 16 Pa were explored. The dependences of coating growth rate, the magnitudes of their microhardness on the parameters of their obtaining, as well as the changes in the morphology of the coating surface, roughness, and structure, were established. The tribological properties of the obtained coatings coupled with bronze Br.Su3H3S20F0.2 were explored at the friction machine 2070 SMT-1 according to the "cube–roller" scheme in a load interval of 0.2–1.4 kN. The lubrication during determining the friction coefficients was carried out by immersion of the movable counter body into a bath with fuel TC-1, GOST 10227-86. It was necessary to conduct such research because there is insufficient information when it comes to the specific equipment and peculiarities of the object onto which a coating is applied. When developing the process of coating application on specific components, techniques, and means to ensure the uniformity of parts heating and precursor feeding to their surface were tested. As a result of the conducted studies, we obtained the regions of parameters of obtaining coatings with different structure, rate, hardness, as well as the patterns of changes in these characteristics at the change of the basic parameters of the process of obtaining such coatings. Depending on application conditions, coatings may have hardness from ~11,000 MPa to 18,000 MPa at a growth rate from 50 μm/h to 170 μm/h. The mean values of the friction coefficient of coatings with different microstructure and microhardness were 0.101 at the load of 0.2 kN and 0.077 at the load of 1.4 kN. Based on the conducted research, it was possible to develop the process of applying the metal and metal-carbide molybdenum-based CVD coatings in regards to the components of the assembly and engine construction, which can serve as the basis for the development of industrial technologies
COMPARATIVE ANALYSIS OF THE FATIGUE CONTACT STRENGTH OF SURFACES HARDENED BY CEMENTATION AND THE ION-PLASMA NITRIDING АVINIT N Alex Sagalovych, Viktor Popov, Vladislav Sagalovуch, Stanislav Dudnik, Vladimir Bogoslavzev, Nik Stadnichenko, Andrey Edinovych Eastern European Journal of Enterprise Technologies, 2020 This paper reports comparative tribotechnical tests of surfaces, hardened by cementation and plasma nitriding Avinit N, for contact fatigue strength at friction in rolling with slipping. Following the cementation, the samples' hardened layer thickness was 1.2 mm; on nitriding, the thickness of the hardened layer was 0.25 mm. The tests were carried out using an acoustic emission method, which is extremely sensitive when registering the transition of tribosystems' operation from the normal (mechanochemical) wear to the initial surface destruction of a fatigue nature.The tests have shown that the average number of cycles before the initial destruction due to fatigue for the samples hardened by the Avinit nitriding technology is 1.82-time higher compared to the cementation-hardened samples. The depth of damage at the surface of the cemented samples could vary between 0.01 and 0.027 mm depending on the diameter of the damage. For the nitrided surfaces, the depth of damage did not exceed 0.003 mm.The samples' resistance to the fatigue wear (destruction) was determined by tests based on 1,000,000 cycles at contact loads σmax=1,140 MPa, typical of medium-loaded surfaces. The test results demonstrated that the integrated multicyclic resistance to fatigue wear (destruction) of the samples, hardened by nitriding, is more than 10 times higher than that of the cementation-hardened samples.The study reported here confirms the effectiveness of using the Avinit ion-plasma nitriding technology instead of cementing, to improve the contact strength of the parts' surfaces. At the same time, worth noting are the advantages of this technology to maintain the size and high quality of surface treatment, which eliminates the need to mechanically finish them after hardening
Mo-C multilayered CVD coetings Tribology in Industry, 2013
The tribological investigations of multicomponent multilayered ion-plasma coatings Avinit Tribology in Industry, 2011
RECENT SCHOLAR PUBLICATIONS
The Influence of Ultra-dispersion Particles on Electron Density in SOFC Materials NM Kirjukhin, JN Kleschev, A Sagalovich, VV Sagalovich Authorea Preprints , 2024 2024
Development of vacuum plasma strengthening hard and ultra hard 3d avinit coatings A Sagalovych, V Sagalovych, S Dudnik, V Popov Available at SSRN 4843283 , 2024 2024 Citations: 1
Application of CVD coatings on the inner surfaces of cooled GTE blades A Sagalovych, VV Popov, V Sagalovych Available at SSRN 4843169 , 2024 2024
Metal-Ceramic Ultradisperse 3D Composite Coatings A Sagalovych, V Sagalovych, S Dudnik, V Popov Available at SSRN 4840280 , 2024 2024
Plasma-chemical synthesis of carbide-based vacuum-plasma functional coatings and study of tribological characteristics of friction pairs A Sagalovych, V Sagalovych, V Popov, S Dudnik Mechanics and Advanced Technologies 8 (1 (100)), 7-15 , 2024 2024 Citations: 1
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Molybdenum-carbide and tungsten-carbide CVD coatings obtained by Avinit vacuum-plasma technologies. A Sagalovych, S Dudnik, R Popenchuk, V Popov, V Sagalovych Available at SSRN 4526052 , 2023 2023
The Vacuum-plasma Nanotechnologies Avinit O Sagalovych, V Sagalovych, SF Dudnik, V Popov 2023
Вакуум-плазмові ерозійно-стійкі 2D-нанокомпозитні покриття Avinit для компресорних лопаток ГТД авіаційних двигунів. O Sagalovych, V Popov, O Kononyhin, V Sagalovych, S Dudnik, ... Mechanics and Advanced Technologies 7 (1 (97)), 7-15 , 2023 2023
Working out the processes of deposition “metal-metal “multi-layer coatings (Cu-Mo, Cu-MoN, Cu-C) and studying the tribological characteristics of friction pairs O Sagalovicha, V Popova, V Sagalovicha, S Dudnika, O Оlijnykb Journal of Materials and Engineering 1, 26-37 , 2023 2023 Citations: 3
Tribological characteristics of samples made from titanium alloy VT5 nitrided in plasma glow discharge OO Alex SAGALOVYCH, Vladislav SAGALOVYCH1, Viktor POPOV, Stanislav DUDNIK Tribology and Materials 3 (1), 1-8 , 2022 2022
The Influence of Ultra-dispersion Particles on Electron Density in SOFC Materials. A Sagalovych, V Sagalovych Available at SSRN 4209655 , 2022 2022 Citations: 3
The effect of obtaining conditions on the structure and composition of Сu-MoS2 coatings upon magnetron sputtering of composite targets O Sagalovych, V Sagalovich TechRxiv 2022 (0816) , 2022 2022
Numerical modelling of diffusion decomposition processes AV Sagalovych, VV Sagalovich, VN Chabanovsky arXiv preprint arXiv:2208.07877 , 2022 2022
Deposition of the stoichiometric coatings by reactive magnetron sputtering A Sagalovych, S Dudnik, V Sagalovych arXiv preprint arXiv:2207.13323 , 2022 2022 Citations: 4
Трибологічні характеристики азотованих у плазмі тліючого розряду зразків із титанового сплаву вт5 у парах із різними матеріалами АВ Сагалович, ВВ Сагалович, ВВ Попов, СФ Дуднік, ОК ОЛІЙНИК Problems of Friction & Wear 96 (3) , 2022 2022 Citations: 2
ТРИБОЛОГІЧНІ ХАРАКТЕРИСТИКИ АЗОТОВАНИХ У ПЛАЗМІ ТЛІЮЧОГО РОЗРЯДУ ЗРАЗКІВ З ТИТАНОВОГО СПЛАВУ ВТ5 У ПАРАХ З РІЗНИМИ МАТЕРІАЛАМИ OAK Sagalovich V.V., Sagalovich A.V., Dudnik S.F., Popov V.V. ІНЖЕНЕРІЯ ПОВЕРХНІ ТА РЕНОВАЦІЯ ВИРОБІВ, 110-115 , 2022 2022
Tribological characteristics of samples made from titanium alloy VT5 nitrided in plasma glow discharge A Sagalovych, V Sagalovych, V Popov, S Dudnik, O Olijnyk Tribol. Mater 1, 106-113 , 2022 2022 Citations: 5
AVINIT VACUUM-PLASMA TECHNOLOGIES IN TRANSPORT MACHINE BUILDING. A Sagalovych, V Sagalovych, V Popov, S Dudnik, А Olijnyk SCIENTIFIC ROUTE OU , 2021 2021 Citations: 6
Application of Avinit vacuum plasma technologies Avinit to the manufacture of high-precision full-size gears A Sagalovych, V Popov, V Sagalovych, S Dudnik, A Edinovych Available at SSRN 3940077 , 2021 2021
MOST CITED SCHOLAR PUBLICATIONS
Исследование характеристик трения и износа ионно-плазменных покрытий, полученных на алюминиевом сплаве CФ Дудник, АП Любченко, АК Олейник, АВ Сагалович, ВВ Сагалович Фізична інженерія поверхні, 112-116 , 2004 2004.0 Citations: 18
Development of the chemical vapor deposition process for applying molybdenum coatings on the components in assembly and engine construction A Sagalovych, V Popov, V Sagalovych, S Dudnik, R Popenchuk Восточно-Европейский журнал передовых технологий, 6-15 , 2020 2020.0 Citations: 16
Improving the performance, reliability and service life of aviation technology products based on the innovative vacuum-plasma nanotechnologies for application of avinit … V Popov, A Sagalovych, V Sagalovych Reliability and Service Life of Aviation Technology Products Based on the … , 2020 2020.0 Citations: 15
The Tribological Investigations of Multicomponent Multilayered Ion-Plasma Coatings Avinit A Sagalovych, V Sagalovych, A Kononyhin, V Popov Tribology in industry 33 (2), 79 , 2011 2011.0 Citations: 14
Vacuum-plasma protective coating for turbines blades. OV Sagalovych, VV Sagalovych, VV Popov, SF Dudnik Mechanics and Advanced Technologies, 124-134 , 2020 2020.0 Citations: 11
Vacuum-plasma multilayer protective coatings for turbine blades A Sagalovych, V Sagalovych, S Dudnik, V Popov Available at SSRN 3813062 , 2021 2021.0 Citations: 10
Спосіб іонно-плазмового прецизійного азотування поверхонь сталей та сплавів Avinit N ОВ Сагалович, ВВ Сагалович Pat. UA, 28.12 , 0 Citations: 10
Experimental research of multicomponent multilayer ion-plasma Avinit coatings A Sagalovych, AV Kononykhin, V Popov, V Sagalovych ФІП ФИП PSE 11 (1) , 2013 2013.0 Citations: 9
Разработка многокомпонентных покрытий для повышения износостойкости поверхностей пар трения в прецизионных узлах агрегатостроения АВ Сагалович, ВА Бабенко, CФ Дудник, ВВ Сагалович, АВ Кононыхин, ... Фізична інженерія поверхні, 155-164 , 2007 2007.0 Citations: 8
Nanesenie pokrytiy na slozhnoprofil'nye pretsizionnye poverkhnosti gazofaznym metodom (CVD)[Coating of complex precision surfaces by the gas phase method (CVD)] AV Sagalovich, AV Grigor'ev, AV Kononykhin, VV Popov, VV Sagalovich Fizicheskaya inzheneriya poverkhnosti–Physical surface engineering 9 (3 … , 0 Citations: 8
Mo-C multilayered CVD coatings A Sagalovych, V Sagalovych Tribology in industry 35 (4), 261 , 2013 2013.0 Citations: 7
Автоматизированная система нанесения функциональных нанопокрытий АВ Сагалович, СФ Дудник, ВВ Сагалович Оборудование и инструмент 12, 2-3 , 2005 2005.0 Citations: 7
The method of ion-plasma precision nitriding of the surfaces of metal products VV Sagalovich, AV Sagalovich Patent , 0 Citations: 7
AVINIT VACUUM-PLASMA TECHNOLOGIES IN TRANSPORT MACHINE BUILDING. A Sagalovych, V Sagalovych, V Popov, S Dudnik, А Olijnyk SCIENTIFIC ROUTE OU , 2021 2021.0 Citations: 6
The investigation of friction and wear characteristics of ion-plasma coatings, received on the aluminum alloy SF Dudnik, AP Lubchenko, АK Оleynik, АV Sagalovich, VV Sagalovich PSE 2 (1-2), 112-116 , 2004 2004.0 Citations: 6
Tribological characteristics of samples made from titanium alloy VT5 nitrided in plasma glow discharge A Sagalovych, V Sagalovych, V Popov, S Dudnik, O Olijnyk Tribol. Mater 1, 106-113 , 2022 2022.0 Citations: 5
Eksperimental'nye issledovaniya pokrytiy tipa Avinit [Experimental studies of Avinit type coatings] AV Sagalovich, AV Kononykhin, VV Popov, SF Dudnik, VV Sagalovich Aviacijno-kosmicna tehnika i tehnologia–Aerospace technic and technology 3, 5-15 , 2011 2011.0 Citations: 5
Экспериментальные исследования покрытий типа Avinit АВ Сагалович, АВ Кононыхин, ВВ Попов, CФ Дудник, ВВ Сагалович Авиационно-космическая техника и технология, 5–15-5–15 , 2011 2011.0 Citations: 5
Ustanovka Avinit dlya nanesennya bagatosharovikh funktsіonal'nikh pokrittіv [Installation Avinit for applying multi-functional coatings] AV Sagalovich, AV Kononikhіn, VV Popov, SF Dudnіk, VV Sagalovich Fizicheskaya inzheneriya poverkhnosti–Physical surface engineering 8, 336-347 , 2010 2010.0 Citations: 5
