Перегляд за автором "Aksenov, N.N."

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 ...
  • 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 ...
  • Combined exposures of tungsten by stationary and transient hydrogen plasma heat loads: preliminary results 
    Makhlaj, V.A.; Aksenov, N.N.; Byrka, O.V.; Garkusha, I.E.; Bizyukov, A.A.; Bizyukov, I.A.; Girka, O.I.; Sereda, K.N.; Bazdyreva, S.V.; Malykhin, S.V.; Pugachov, A.T. (Вопросы атомной науки и техники, 2013)
    Influence of combined hydrogen plasma exposures on tungsten behavior was studied in QSPA Kh-50 facility and steady-state ion beam system FALCON. Pulsed plasma loads (0.45 MJ/m²) were below the tungsten melting threshold. ...
  • 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 ...
  • HIgh heat flux plasma testing of ITER divertor materials under ELM relevant conditions in QSPA Kh-50 
    Makhlaj, V.A.; Garkusha, I.E.; Aksenov, N.N.; Kulik, N.V.; Landman, I.S.; Linke, J.; Medvedev, A.V.; Malykhin, S.V.; Chebotarev, V.V.; Pugachev, A.T.; Tereshin, V.I. (2010)
    Performed studies of plasma-surface interaction include measurements of plasma energy deposited to the material surface and determination of tungsten cracking threshold during repetitive ITER ELM-like plasma exposures in ...
  • 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 ...
  • 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 ...
  • Plasma-surface interaction and mechanisms of dust production in ITER ELM simulation experiments with QSPA Kh-50 
    Makhlaj, V.A.; Garkusha, I.E.; Aksenov, N.N.; Byrka, O.V.; Landman, I.; Lebedev, S.I.; Shevchuk, P.B. (Вопросы атомной науки и техники, 2012)
    Experimental simulations of ITER transient events with relevant surface heat load parameters (energy density and the pulse duration) were carried out with a quasi-stationary plasma accelerator QSPA Kh-50. The several ...
  • Plasma-surface interaction during iter transient events: simulation with QSPA Kh-50 AND GOL-3 facilities 
    Garkusha, I.A.; Burdakov, A.V..; Ivanov, I.A.; Kruglyakov, E.P.; Kuklin, K.N.; Landman, I.S.; Makhlaj, V.A.; Polosatkin, S.V.; Shoshin, A.A.; Tereshin, V.I.; Aksenov, N.N. (Вопросы атомной науки и техники, 2008)
    The paper presents experimental investigations of plasma-surface interaction (PSI) and materials behavior under plasma loads relevant to giant ELMs in ITER. The experiments were performed with QSPA Kh-50 and GOL-3 devices ...
  • 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 ...