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Wyszukujesz frazę "Kolesnikov, I." wg kryterium: Autor

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Modelling of thermoelastic transient contact interaction for binary bearing taking into account convection
    Моделирование термоупругого нестационарного контактного взаимодействия в бинарном подшипнике скольжения с учетом конвективного теплообмена
    Autorzy:
    Kolesnikov, I.
    Danilchenko, S.
    Kolosova, E.
    Chebakov, M.
    Lyapin, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/374611.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    bearing
    friction
    heat generation
    convective heat transfer
    temperature
    łożysko
    tarcie
    generowanie ciepła
    wymiana ciepła przez konwekcję
    temperatura
    Opis:
    Serviceability of metal-polymeric "dry-friction" sliding bearings depends on many parameters, including the rotational speed, friction coefficient, thermal and mechanical properties of the bearing system and, as a result, the value of contact temperature. The objective of this study is to develop a computational model for the metallic-polymer bearing, determination on the basis of this model temperature distribution, equivalent and contact stresses for elements of the bearing arrangement and selection of the optimal parameters for the bearing system to achieve thermal balance. Static problem for the combined sliding bearing with the account of heat generation due to friction has been studied in [1]; the dynamic thermoelastic problem of the shaft rotation in a single and double layer bronze bearings were investigated in [2, 3].
    Работоспособность полимерных подшипников скольжения «сухого трения» зависит от многих параметров, включающих в себя скорость вращения вала, коэффициент трения, термо-механические свойства элементов подшипниковой системы и, как следствие, величины результирующих контактных температур. Целью данного исследования является разработка расчётной модели работы бинарного подшипника скольжения «сухого трения» с полимерными цилиндрическими вставками, определения на ее основе распределения температур, эквивалентных и контактных напряжений в элементах подшипниковой системы и подбор оптимальных параметров подшипниковой системы, при которых достигается тепловой баланс. Статическая задача для комбинированного подшипника скольжения с учётом тепловыделения от трения была исследована в работе [1], динамическая термоупругая задача о вращении вала в однослойном подшипнике из бронзы была исследована в работе [2], двухслойного с антифрикционным покрытием в.
    Źródło:
    Transport Problems; 2016, 11, 4; 73-81
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wear resistance of hydrogenated high nitrogen steel at dry and solid state lubricants assistant friction
    Autorzy:
    Balitskii, O. A.
    Kolesnikov, V. O.
    Balitskii, A. I.
    Powiązania:
    https://bibliotekanauki.pl/articles/379381.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    dry friction
    hydrogenated high nitrogen steel
    wear resistance
    embrittlement
    suche tarcie
    uwodorniona stal o wysokiej zawartości azotu
    odporność na zużycie
    kruchość
    Opis:
    Purpose: This paper is devoted the investigation hydrogen influence on of wear resistance of high nitrogen steel (HNS) at dry and solid state lubricants assistant friction. It has been established that after hydrogenation at 250 N loading the wear rate increased by 2.9 ... 4.1 times. Microhardness of hydrogenated layer was 7.6 ... 8.2 GPa, that is increased after hydrogenation in two times. After adding the (GaSe)xIn1-x compounds to the tribo conjugates by X-ray diffraction analysis it has been established the appearance of new phases which formed during the friction process and detected on the friction surface. Design/methodology/approach: This work presents research results concerning the comparative tests of high nitrogen steels in the circumstances of dry rolling friction. It was conducted the experiments to determine the tribological properties of high-nitrogen steels under rolling friction. The test pieces were manufactured in the form of rollers, and rotated with a linear velocity 2.27 m/s (upper roller), 3.08 m/s (bottom roller). Upper roller is made from HNS was subjected for hydrogenation. Analysis of friction surfaces indicates the complex mechanism of fracture surfaces. The results of the local X-ray analysis and X-ray diffraction analysis has been established the appearance of new phases and elements on the friction surface. Findings: It has been found that the level of wear resistance of the investigated materials under hydrogenation. Compounds realize chemisorption, tribochemical mechanisms of the formation of thin protective (anti-wear, antifriction) layers on metal surfaces. Research limitations/implications: An essential problem is the verification of the results obtained using the standard mechanical tests, computer-based image analysis and other methods. Practical implications: The observed phenomena can be regarded as the basic explanation of reduces the plasticity characteristics after hydrogenation. Applying the (GaSe)xIn1-x compounds as a lubricant will allow the formation of films on friction surfaces that can minimize surface wear, which will contribute to the transition to a wear-free friction mode. The protective film is a barrier to high shear and normal loads, preserving the base metal of the part and providing reduced wear and friction. Originality/value: The value of this work is that conducted experiments permit to determine the tribological properties of high nitrogen steels under rolling friction after hydrogenation. After adding (GaSe)xIn1-x compounds to the tribo conjugates after due to X-ray diffraction analysis it has been established the appearance of new phases which formed during the friction process and detected on the friction surface.
    Źródło:
    Archives of Materials Science and Engineering; 2019, 98, 2; 57-67
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Odporność na zużycie ścierne i niszczenie wodorowe austenitycznych stopów Fe-Mn-C
    The wear resistance and hydrogen resistance of austenitic FE-MN-C alloys
    Autorzy:
    Balitskii, A.
    Chmiel, J.
    Kawiak, P.
    Ripey, I.
    Kolesnikov, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/257809.pdf
    Data publikacji:
    2007
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
    Tematy:
    żeliwo manganowe
    austenit
    odporność na pękanie
    zużycie ścierne
    produkty zużycia
    degradacja wodorowa
    manganese cast irons
    austenite
    crack resistance
    wear
    wear products
    hydrogen degradation
    Opis:
    Zbadano wpływ dodatków stopowych na strukturę powierzchni i strefy podpowierzchniowej w austenitycznych żeliwach stopowych Fe-Mn-C, modyfikowanych dodatkami Cr, V i Ti w warunkach zużycia przy zmien-nym obciążeniu i niszczenia wodorowego. Wykazano, że dodatki stopowe różnie wpływają na odporność na zużycie i niszczenie wodorowe. W warunkach braku smaru grafit może adsorbować go w ograniczonej ilości i pewne ilości dostarczać na powierzchnię zapobiegając tym samym mikro-zgrzewaniu tych powierzchni i zużyciu katastrofalnemu.
    A study was carried out to analyses the influence of alloying elements on the surface and under surface layers structure of Fe-Mn-Cu alloys modified by Cr - V - Ti during the wear under different loading and hydrogen embrittlement. It was shown that alloying elements increases operational properties in the different ways. It was established that an increase of hardness and the change of the structural-phase structure of the investigated alloys in conditions of dry friction at constant loading and high-speed modes can be accompanied by a reduction of the intensity of the wear process that is a transition from pathological modes of the destruction of a material to a normal operating mode wear process.
    Źródło:
    Problemy Eksploatacji; 2007, 4; 7-16
    1232-9312
    Pojawia się w:
    Problemy Eksploatacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characterization of Temperature Field Distribution in Large-Size Paratellurite Crystals Applied in Acousto-Optic Devices
    Autorzy:
    Tretiakov, S.
    Grechishkin, R.
    Kolesnikov, A.
    Kaplunov, I.
    Yushkov, K.
    Molchanov, V.
    Linde, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1383374.pdf
    Data publikacji:
    2015-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.70.-a
    42.79.-e
    65.40.-b
    07.20.-n
    Opis:
    Temporal and spatial distribution of temperature field was studied in operating acousto-optic devices on base of large-size paratellurite crystals. The study was carried out in real time by means of thermal imaging technique. Dynamics of heat release in a hot deflector and a hot tunable filter was examined at different frequencies and driving electric power levels applied to piezoelectric transducers. The study was also based on measurements of standing wave ratio and analysis of the Smith charts.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 1; 72-74
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydrogen effect on the high-nickel surface steel properties during machining and wear with lubricants
    Autorzy:
    Balitskii, O. A.
    Kolesnikov, V. O.
    Balitskii, A. I.
    Eliasz, J. J.
    Havrylyuk, M. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1818505.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    hydrogen
    chip
    fracture
    wear products
    lubricant-cooling technological environment
    wodór
    zrębki
    pęknięcie
    produkty zużycia
    Opis:
    Purpose: The aim of the proposed research is to investigate the hydrogen effect on the high-nickel steel surface properties changing during machining and wear with participation of lubricant-cooling environments. Design/methodology/approach: The approach of the fracture mechanics and physicalchemical methods surface properties investigation was used to formulate the conclusions. Applying of lubricant-cooling (liquid, solid, gaseous) technological environments (LCTE) has change the morphology of chips and roughness of contact 23Ni1Mo3Ti steel surfaces depending on the experimentally fixed hydrogen concentrations (4.62…12.0 ppm). It correlates with both the roughness of the treated surface and the nature of the cutting products fragmentation: the maximum concentration of hydrogen - in the chips coincides with the minimum size of its defragmentation and reduction of the surface roughness. For nitrogen and oxygen, a similar relationship is traced poorly. Findings: On the basis of the fracture mechanics approaches it is confirmed, that in the conditions of the application of hydrogen containing (as chemical composition) (up to 12 ppm) and hydrogen accumulated (in nano container) (up to 600 ppm) LCTE, hydrogen enters the near crack initiation contact zone before fracture and taking part in changing structural material fracture mechanisms, improves its mashinning processes. Research limitations/implications: The results obtained on laboratory specimens should be tested during machining of real details made from high-nickel steel. Practical implications: The created technological approaches can be used in practice evaluation of mechanical properties and residual of modern gas turbine parts. Originality/value: It was shown, that hydrogen containing (in chemical composition) and hydrogen accumulated (in nano container) LCTE permits the hydrogen to enter in the near crack initiation contact zone before fracture and taking part in changing structural material fracture mechanisms.
    Źródło:
    Archives of Materials Science and Engineering; 2020, 104, 2; 49--57
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Deposition Parameters and Thermal Annealing on the Structure and Properties of Nitride Coatings (TiHfZrVNb)N
    Autorzy:
    Pogrebnjak, A.
    Abadias, G.
    Chartier, P.
    Bondar, O.
    Yakuschenko, I.
    Takeda, Y.
    Krause-Rehberg, R.
    Kolesnikov, D.
    Beresnev, V.
    Partyka, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1365973.pdf
    Data publikacji:
    2014-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.46.-w
    62.20.Qp
    62.25.-g
    Opis:
    Results of structure, phase composition, physical and mechanical properties and tribological properties investigations of nitride high-entropy coatings (TiZrHfVNb)N are presented in the paper. Proton microbeam (μ-PIXE), X-ray diffraction method, including method of X-ray strains measurements, energy dispersive X-ray spectroscopy and scanning electron microscopy analysis, microhardness testing and nanoindentation were used. Thermal annealing (t=600°C) influence on defect profiles, structure and element distribution in the coatings was investigated. It was found that thermal treatment of coatings leads to changing of defect profiles and to element redistribution. Also we can say that it influences less on grain size changing. Investigated (TiZrHfVNb)N coatings demonstrate high values of hardness and excellent wear resistance.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 6; 1296-1298
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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