Перегляд за автором "Herashchenko, S.S."

Сортувати за: Порядок: Результатів:

  • Alloying and modification of stainless steels by powerful plasma streams 
    Makhlaj, V.A.; Aksenov, N.N.; Byrka, O.V.; Chunadra, A.G.; Herashchenko, S.S.; Malykhin, S.V.; Mikhailov, I.F.; Sereda, K.N.; Surovitskiy, S.V. (Вопросы атомной науки и техники, 2016)
    The stainless steel surfaces coated of tungsten have been alloyed and modified with powerful QSPA Kh-50 plasma streams. The plasma streams exposures result in modification of steel-based materials and formation of ...
  • Behavior of the Ti-Zr-Ni thin film containing quasicrystalline and approximant phases under radiative-thermal action in transition modes 
    Malykhin, S.V.; Makhlai, V.A.; Surovitskiy, S.V.; Garkusha, I.E.; Herashchenko, S.S.; Kondratenko, V.V.; Kopylets, I.A.; Zubarev, E.N.; Borisova, S.S.; Fedchenko, A.V. (Вопросы атомной науки и техники, 2020)
    X-ray diffraction and SEM microscopy were used to study the structural and phase changes in a thin film obtained by magnetron sputtering of a Ti52Zr30Ni18 target (at.%) on a steel substrate under the radiation-thermal ...
  • Castellated structures behaviour under QSPA Kh-50 plasma exposures in ITER relevant conditions 
    Herashchenko, S.S.; Makhlaj, V.A.; Aksenov, N.N.; Bazylev, B.; Byrka, O.V.; Chebotarev, V.V.; Kulik, N.V.; Lebedev, S.I.; Shevchuk, P.B.; Staltsov, V.V. (Вопросы атомной науки и техники, 2014)
    The experimental study of castellated target erosion under relevant to ITER ELMs surface heat load (i.e., energy density and the pulse duration as well as particle loads) was performed in QSPA Kh-50 quasi-stationary plasma ...
  • Characterization of macroscopic erosion of castellated and flat tungsten surfaces under ITER-like transient plasma loads 
    Myroshnyk, M.O.; Herashchenko, S.S.; Makhlai, V.A.; Garkusha, I.E.; Aksenov, N.N.; Byrka, O.V.; Chebotarev, V.V.; Kulik, N.V.; Lebedev, S.I.; Shevchuk, P.B.; Staltsov, V.V. (Вопросы атомной науки и техники, 2019)
    The damages of tungsten targets with different geometries under repetitive transient hydrogen plasma loads have been studied with a quasi-stationary plasma accelerator QSPA Kh-50. The results of the experiments on target ...
  • Damage of 3D tungsten targets in the course of ITER ELM-like heat loads 
    Herashchenko, S.S.; Makhlaj, V.A.; Aksenov, N.N.; Byrka, O.V.; Chebotarev, V.V.; Kulik, N.V.; Lebedev, S.I.; Shevchuk, P.B.; Staltsov, V.V. (Вопросы атомной науки и техники, 2017)
    The damage of tungsten target under repetitive plasma loads have been studied with a quasi-stationary plasma accelerator QSPA Kh-50. The target construction was close to the ITER divertor reference design. The plasma stream ...
  • Damaging of pure tungsten with different microstructure under sequential QSPA and LHD plasma loads 
    Herashchenko, S.S.; Byrka, O.V.; Makhlaj, V.A.; Wirtz, M.; Aksenov, N.N.; Garkusha, I.E.; Petrov, Yu.V.; Malykhin, S.V.; Surovitskiy, S.V.; Masuzaki, S.; Tokitani, M.; Lebedev, S.I.; Shevchuk, P.B. (Вопросы атомной науки и техники, 2020)
    The cracking thresholds were evaluated for tungsten samples with different microstructure in the course of QSPA Kh – 50 repetitive plasma loads. No damage has been observed on the exposed surfaces under 0.1 MJ/m². Nevertheless, ...
  • Diagnostics of plasma streams and plasma-surface interaction of essentially different duration of plasma pulses 
    Marchenko, A.K.; Ladygina, M.S.; Petrov, Yu.V.; Garkusha, I.E.; Solyakov, D.G.; Byrka, O.V.; Chebotarev, V.V.; Aksenov, N.N.; Herashchenko, S.S.; Lebedev, S.I.; Shevchuk, P.B.; Astashinski, V.M.; Makhlaj, V.A.; Kulik, N.V.; Yelisyeyev, D.V.; Staltsov, V.V.; Cherednychenko, T.N. (Вопросы атомной науки и техники, 2016)
    Studies of main characteristics of the plasma streams generated by magneto-plasma compressor (MPC) and quasi-stationary plasma accelerator QSPA Kh-50 have been performed. Main features of Plasma Surface Interaction (PSI) ...
  • Erosion features of tungsten surfaces under combined steady-state and transient plasma loads 
    Herashchenko, S.S.; Makhlaj, V.A.; Girka, O.I.; Aksenov, N.N.; Bizyukov, I.A.; Malykhin, S.V.; Surovitskiy, S.V.; Sereda, K.N.; Bizyukov, A.A. (Вопросы атомной науки и техники, 2016)
    The paper presents the experimental research on damage of the tungsten surfaces under combined plasma exposures. Steady-state hydrogen exposures (particle flux of 2×10²² m⁻²s⁻¹ , heat flux of 1.7 MW/m² , fluence of 1026 ...
  • Erosion properties of tungsten and WTa5 alloy exposed to repetitive QSPA plasma loads below melting threshold 
    Makhlai, V.A.; Herashchenko, S.S.; Aksenov, N.N.; Byrka, O.V.; Garkusha, I.E.; Malykhin, S.V.; Surovitskiy, S.V.; Kulik, N.V.; Staltsov, V.V.; Lebedev, S.I.; Shevchuk, P.B.; Wirtz, M.; Sadowski, M.J. (Вопросы атомной науки и техники, 2018)
    The damage of deformed double forged pure tungsten (W) and tungsten alloyed with 5 wt.% tantalum (WTa5) have been studied in experimental simulations of ITER-like transient events (surface heat load of 0.45 MJ/m² and ...
  • Influence of different types of hydrogen treatment on hydrogen retention and release from 12Kh18N10T steel 
    Bondarenko, M.N.; Glazunov, G.P.; Konotopskiy, A.L.; Lozin, A.V.; Moiseenko, V.E.; Aksenov, N.N.; Garkusha, I.E.; Herashchenko, S.S.; Makhlaj, V.A. (Вопросы атомной науки и техники, 2018)
    Hydrogen outgassing from stainless steel was investigated after sample treatment by different plasmas: VHF/RF pulse discharges during wall conditioning in the Uragan-2M torsatron, with RF pulse plasma heating regime ...
  • Mass-separation of impurities in the ion beam systems with reversed magnetic beam focusing 
    Girka, O.I.; Bizyukov, I.A.; Bizyukov, A.A.; Sereda, K.N.; Herashchenko, S.S. (Вопросы атомной науки и техники, 2012)
    This paper describes the intrinsic capability of ion systems with reversed magnetic beam focusing for impurities mass-separation. Numerical calculation of the ion trajectory deviation with taking into account the experimental ...
  • Modification and alloying effects in Eurofer steel under powerful pulsed plasma impacts 
    Byrka, O.V.; Herashchenko, S.S.; Makhlai, V.A.; Aksenov, N.N.; Garkusha, I.E.; Marchenko, H.K.; Chunadra, А.G.; Sereda, К.N.; Malykhin, S.V.; Surovitskiy, S.V. (Вопросы атомной науки и техники, 2021)
    Experimental studies of surface modification of Eurofer samples have been performed with a quasi-stationary plasma accelerator QSPA Kh-50. The heat load on the surface was near the tungsten melting threshold (i.e. about ...
  • Pulsed electromagnetic gas valves for high-current plasma accelerators 
    Staltsov, V.V.; Chebotarev, V.V.; Herashchenko, S.S.; Kulik, N.V. (Вопросы атомной науки и техники, 2019)
    The paper describes the design features of a gas valve for the axial (parallel to the axis of the accelerator) working gas supply into the accelerator channel. The results of gas-dynamic studies of the injectors are ...
  • Stability of thin quasi-crystalline Ti-Zr-Ni films and related crystalline phases under low-energy transient plasma irradiation 
    Malykhin, S.V.; Kondratenko, V.V.; Makhlai, V.A.; Garkusha, I.E.; Kopylets, I.A.; Borisov, Yu.S.; Herashchenko, S.S.; Surovitskiy, S.V.; Borisova, S.S. (Problems of Atomic Science and Technology, 2022)
    The properties of Ti41Zr38.3Ni20.7 thin films under radiation-thermal action of hydrogen plasma with a surface heat load of 0.2 MJ/m² was studied at the QSPA Kh-50 quasi-stationary plasma accelerator (NSC KIPT). The phase ...
  • Structural-phase changes in thin films and surface layers of Ti41.5Zr41.5Ni17 alloy, stimulated by radiation-thermal impact of hydrogen plasma 
    Malykhin, S.V.; Makhlai, V.A.; Surovitskiy, S.V.; Borisova, S.S.; Herashchenko, S.S.; Kondratenko, V.V.; Kopylets, I.A.; Baturin, A.A.; Terentyev, D. (Вопросы атомной науки и техники, 2019)
    X-ray diffraction and SEM microscopy were used to study structural and phase changes in the surface layers of a Ti41.5Zr41.5Ni17 alloy bulk sample (target) and a thin film (deposited by magnetron sputtering of the target) ...
  • Structure evolution of tungsten coatings exposed to plasma flows under ITER ELM relevant conditions 
    Malykhin, S.V.; Surovitskiy, S.V.; Makhlaj, V.A.; Aksenov, N.N.; Byrka, O.V.; Borisova, S.S.; Herashchenko, S.S.; Reshetnyak, V.V. (Вопросы атомной науки и техники, 2017)
    Structure, substructure and stress parameters both on the surface and distributed by depth in the tungsten/steel coatings exposed to high energy hydrogen plasma fluxes were studied by X-ray diffraction methods. The hydrogen ...
  • Surface modification and droplet formation under exposures of tungsten coatings with ELM-like transient loads 
    Byrka, O.V.; Aksenov, N.N.; Herashchenko, S.S.; Makhlaj, V.A.; Taran, V.S.; Timoshenko, O.I. (Вопросы атомной науки и техники, 2017)
    Features of surface modification of tungsten coatings after repetitive irradiation with QSPA Kh-50 plasma pulses are presented. Cracking, development of tungsten surface morphology and emission of droplets are studied. ...
  • The effect of a small helium addition on the plasma-surface interaction in QSPA 
    Makhlai, V.A.; Herashchenko, S.S.; Petrov, Yu.V.; Ladygina, M.S.; Aksenov, N.N.; Chebotarev, V.V.; Kulik, N.V.; Staltsov, V.V.; Yelisyeyev, D.V.; Volkova, Y.E.; Merenkova, T.M. (Problems of Atomic Science and Technology, 2023)
    The synergistic effects of tungsten exposure to combined hydrogen and helium particle fluxes as well as transient thermal loads need to be extensively studied for implementation of fusion reactor project. The mixture of ...