Перегляд за автором "Tolmachova, G.N."

Сортувати за: Порядок: Результатів:

  • Application of nanoindentation for investigation of radiation damage in SS316 stainless steel 
    Tolmachova, G.N.; Tolstolutskaya, G.D.; Karpov, S.A.; Sungurov, B.S.; Vasilenko, R.L. (Вопросы атомной науки и техники, 2015)
    The possibility of application of nanoindentation technique for investigation of mechanical properties (hardness and modulus of elasticity) of SS316 steel irradiated with 1.4 MeV Ar⁺ ions to a dose of 1·10¹⁷ cm⁻² at 900 K ...
  • Cavitation erosion of Ti-6Al-4V alloy with vacuum-arc TiN and CrN coatings 
    Kuprin, А.S.; Ovcharenko, V.D.; Leonov, S.A.; Tolmachova, G.N.; Belous, V.А.; Reshetnyak, Е.N.; Klimenko, I.О.; Kmech, М. (Вопросы атомной науки и техники, 2018)
    The distilled-water cavitation erosion resistance of Ti-6Al-4V alloy with vacuum-arc TiN and CrN coatings is investigated. The results show that the coatings having high mechanical properties are capable to reduce ...
  • Deposition of chromium nitride coatings from vacuum arc plasma in increased nitrogen pressure 
    Ovcharenko, V.D.; Kuprin, A.S.; Tolmachova, G.N.; Gilewicz, A.; Lupicka, O.; Rochowicz, J.; Warcholinski, B. (Вопросы атомной науки и техники, 2014)
    The application of protective coatings on metal materials is the effective way to improve their durability. Chromium nitride coatings are applied mainly on tools due to good resistivity to oxidation compared to other metal ...
  • Deposition of TiN-based coatings using vacuum arc plasma in increased negative substrate bias voltage 
    Kuprin, A.S.; Leonov, S.A.; Ovcharenko, V.D.; Reshetnyak, E.N.; Belous, V.A.; Vasilenko, R.L.; Tolmachova, G.N.; Kovalenko, V.I.; Klimenko, I.O. (Вопросы атомной науки и техники, 2019)
    The paper presents the results of the study on the influence of a high substrate bias voltage from 300 up to 1300 V on the titanium nitride coating deposition under nitrogen pressure of 2 Pa. The deposition rate, phase and ...
  • Effect of argon ion irradiation on hardening and microstructure of ferritic-martensitic steel T91 
    Voyevodin, V.N.; Tolstolutskaya, G.D.; Karpov, S.A.; Tikhonovsky, M.A.; Tolmachova, G.N.; Kalchenko, A.S.; Vasilenko, R.L.; Kopanets, I.E. (Вопросы атомной науки и техники, 2019)
    Ferritic-martensitic steel T91 was irradiated with 1.4 MeV Ar⁺ ions to doses from 0.5 to 7 displacements per atom (dpa) at room temperature. Microstructure characterization was performed using transmission electron microscopy ...
  • Effect of carbon on the properties of CrN coatings formed by cathodic arc evaporation in stationary system 
    Kuprin, A.S.; Kolodiy, I.V.; Ovcharenko, V.D.; Tolmachova, G.N.; Gilewicz, A.; Lupicka, O.; Warcholinski, B. (Вопросы атомной науки и техники, 2016)
    Due to good resistance to oxidation and wear chromium nitride coatings are widely used in industry. The works aimed at further improving, for example by carbon doping, the properties of the coatings. The goal of this study ...
  • Effect of deuterium implantation dose on properties of CrN coatings 
    Kuprin, A.S.; Belous, V.A.; Morozov, O.M.; Ovcharenko, V.D.; Dub, S.N.; Tolmachova, G.N.; Reshetnyak, E.N.; Zhurba, V.I.; Progolaieva, V.O. (Вопросы атомной науки и техники, 2017)
    The methods of X-ray diffraction analysis, atomic-force microscopy, nanoindentation and thermodesorption spectroscopy have been applied to investigate the effect of a dose (from 5∙10¹⁶ to 1.5∙10¹⁸ D/сm²) of implanted ...
  • Effect of nitrogen pressure on the structural and mechanical properties of V-Mo-N coatings deposited by cathodic arc evaporation 
    Kuprin, A.S.; Reshetnyak, E.N.; Gilewicz, A.; Warcholinski, B.; Vasilenko, R.L.; Rostova, H.Yu.; Klimenko, I.O.; Tolmachova, G.N.; Ilchenko, A.V. (Вопросы атомной науки и техники, 2022)
    The coatings of the V-Mo-N system were deposited by the cathodic arc evaporation method from the unfiltered plasma of two V and Mo cathodes. Electron microscopy, energy dispersive analysis, X-ray diffractometry, nanoindentation, ...
  • Effect of severe plastic deformation on radiation hardening of T91 ferritic-martensitic steel 
    Voyevodin, V.N.; Tolstolutskaya, G.D.; Karpov, S.A.; Velikodnyi, A.N.; Tikhonovsky, M.A.; Kalchenko, A.S.; Tolmachova, G.N.; Vasilenko, R.L.; Kopanets, I.E. (Вопросы атомной науки и техники, 2021)
    Effect of thermomechanical treatment on radiation hardening behavior in T91 ferritic-martensitic steel was evaluated. An applying of severe plastic deformation (SPD) by the “upsetting-extrusion” method and subsequent heat ...
  • Hardening of Cr-Fe-Ni-Mn high-entropy alloys caused by the irradiation with argon ions 
    Tolstolutskaya, G.D.; Rostova, G.Y.; Voyevodin, V.N.; Velikodnyi, A.N.; Tikhonovsky, M.A.; Tolmachova, G.N.; Kalchenko, A.S.; Vasilenko, R.L.; Kopanets, I.E. (Вопросы атомной науки и техники, 2017)
    Nanoindentation was used to measure the ion irradiation effect on hardening of Cr-Fe-Ni-Mn high-entropy alloys with different composition. Alloys were irradiated with 1.4 MeV Ar ions at room temperatures and midrange doses ...
  • Protective vacuum-arc coatings on zirconium alloy fuel cladding to prevent catastrophic accidents at nuclear reactors 
    Kuprin, A.S.; Zuyok, V.A.; Belous, V.A.; Ovcharenko, V.D.; Reshetnyak, E.N.; Vasilenko, R.L.; Tolmachova, G.N.; Kushtym, Ya.O. (Problems of Atomic Science and Technology, 2023)
    The processes of vacuum arc deposition of multicomponent coatings based on Cr, Ti, Al, Fe, Y, Si, and their nitrides with a thickness of 5…9 μm for the protection of zirconium alloy fuel rods were developed. The composition, ...
  • Radiation resistance of Ti—20Zr alloy in microcrystalline and nanocrystalline state 
    Belous, V.A.; Borodin, O.V.; Bryk, V.V.; Vasilenko, R.L.; Voyevodin, V.N.; Kuprin, A.S.; Ovcharenko, V.D.; Reshetnyak, E.N.; Tolmachova, G.N. (Functional Materials, 2013)
    In this work we studied structure of Ti—20Zr alloy in recrystallized and nanocrystalline conditions before and after irradiation by Zr³⁺ ions with energy 1.8 MeV to 80 dpa at 500° C. By transmission electron microscopy ...
  • Role of surface layer nanosrtucturing in improving mechanical and corrosion properties of reactor materials 
    Ozhigov, L.S.; Belous, V.A.; Savchenko, V.I.; Nosov, G.I.; Ovcharenko, V.D.; Tolmachova, G.N.; Kuprin, A.S.; Goltvyanitsa, V.S. (Вопросы атомной науки и техники, 2017)
    The results of investigations into the influence of the ion-plasma treatment (IPT), including the ion implantation and ion-plasma coating deposition, on the mechanical properties and corrosion resistance of nuclear fuel ...
  • Structure and properties of W, Ta and W-Ta coatings deposited with the use of a gas-plasma source 
    Lunyov, V.M.; Kuprin, A.S.; Ovcharenko, V.D.; Belous, V.A.; Morozov, A.N.; Ilchenko, A.V.; Tolmachova, G.N.; Reshetnyak, E.N.; Vasilenko, R.L. (Вопросы атомной науки и техники, 2016)
    W, Ta and W-Ta coatings were deposited by argon ion sputtering of targets made from appropriate metals using the gas plasma source. Mechanical properties of the obtained coatings were investigated by the methods of X-ray ...
  • Tribological properties of vacuum arc Cr-O-N coatings in macro- and microscale 
    Kuprin, A.S.; Kuznetsova, T.A.; Gilewicz, A.; Tolmachova, G.N.; Ovcharenko, V.D.; Abetkovskaia, S.O.; Zubar, T.I.; Khudoley, A.L.; Chizhik, S.A.; Lupicka, O.; Warcholinski, B. (Вопросы атомной науки и техники, 2016)
    In this paper the tribological properties of Cr-O-N coatings deposited using vacuum arc plasma flux in macro- (sphere-on-disc test) and microscale (AFM-atomic force microscopy) are investigated. It was found that the ...
  • Тhe dose dependence of inert gases irradiation hardening of 316 austenitic stainless steel after low temperature irradiation 
    Karpov, S.A.; Tolstolutskaya, G.D.; Voyevodin, V.N.; Tolmachova, G.N.; Kopanets, I.E. (Вопросы атомной науки и техники, 2018)
    Irradiation-induced hardening has been investigated in relation to SS316 austenitic stainless steel. Samples were irradiated with 1400 keV/He and 1400 keV/Ar ions ions at fluences 0.01…10 displacements per atom (dpa) at ...