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Wyszukujesz frazę "Konovalov, S." wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Research into morphology and phase structure in the surface of Al-Si alloy modified by yttrium oxide
    Autorzy:
    Zagulyaev, D.
    Konovalov, S.
    Gromov, V.
    Melnikov, A.
    Shlyarov, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/201477.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    silumin
    microstructure
    electroexplosive alloying
    yttrium oxide
    mikrostruktura
    tlenek itru
    Opis:
    Using methods of physical material studies (scanning electron microscopy and micro X-ray spectral analysis), a study was carried out with focus on alteration of structure and phase composition in surface layers of Al-Si alloy (silumin АК10М2N) treated in electroexplosive alloying with a multiphase plasma jet formed in the process of aluminum foil explosion and carrying particles of Y2O3 weighted powder portion. It was revealed that a porous surface layer with non-homogeneously distributed alloying elements (silicon, yttrium) in it is formed in any conditions of electroexplosive alloying of silumin. Thickness of the modified layer is different, varying 50 to 160 μm, depending on the zone to be examined. The modified surface consists basically of Al, Si and Y. Yttrium in the modified layer is thought to be an indirect evidence of better physical and mechanical properties of the surface layer in comparison with the base material.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2019, 67, 2; 173-177
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dispersion of Al-Si Alloy Structure by Intensive Pulsed Electron Beam
    Autorzy:
    Konovalov, S.
    Gromov, V.
    Zaguliyaev, D.
    Ivanov, Y.
    Semin, A.
    Rubannikova, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/381713.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    silumin
    structure Al-Si
    electron beam processing
    crystallization cells
    dispersion
    struktura Al-Si
    obróbka wiązką elektronową
    krystalizacja
    dyspersja
    Opis:
    By the method of modern physical material science (optic microscopy scanning and transmission electron microscopy) the analysis of structural phase states, the morphology of the second phase inclusions and defect substructure of Al-Si alloy (silumin) of hypoeutectic composition, subjected to electron beam processing was done with the following parameters: energy density 25-35 J/cm2, beam length 150 μs, pulse number – 3, pulse repetition rate – 0.3 Hz, pressure of residual gas (argon) 0.02 Pa. The surface irradiation results in the melting of the surface layer, the dissolution of boundary inclusions, the stricture formation of high speed cellular crystallization of submicron sizes, the repeated precipitation of the second phase nanodimentional particles. With the increased distance from the irradiation surface the layer containing the second phase inclusions of quasi-equilibrium shape along with the crystallization cells was revealed. It is indicative of the processes of Al-Si alloy structure globalization on electron beam processing.
    Źródło:
    Archives of Foundry Engineering; 2019, 2; 79-84
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling of the behavior of in - vessel mirrors for ITER with ECR plasma discharges
    Autorzy:
    Voitsenya, V. S.
    Bardamid, A. F.
    Belyaeva, A. I.
    Bondarenko, V. N.
    Davis, J. W.
    Konovalov, V. G.
    Mukhin, E. E.
    Razdobarin, A. G
    Ryzhkov, I. V.
    Shapoval, A. N.
    Shtan, A. F.
    Skoryk, O. A.
    Solodovchenko, S. I.
    Powiązania:
    https://bibliotekanauki.pl/articles/147820.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    ECR plasma
    mirrors for plasma diagnostics in ITER
    structure
    sputtering
    chemical erosion
    Opis:
    The main experimental results related to the problems associated with in-vessel mirrors in ITER obtained with the DSM-2 facility at the Kharkov Institute of Plasma Physics over the past few years are described and discussed. Mirrors made from various polycrystalline (Be, Al, SS, Cu, Mo, Ta, W) and single crystal (Ni, SS, Mo, W) metals, metal films (Be, Cu, Mo, Rh) on different metal substrates (V, SS, Cu, Mo), and an amorphous alloy (ZrTiCuNiBe) have been studied. In addition, the behavior of protective oxide coatings under plasma bombardment has also been analyzed.
    Źródło:
    Nukleonika; 2012, 57, 2; 157-162
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Progress in stellarator research at IPP-Kharkov
    Autorzy:
    Moiseenko, V. E.
    Lozin, O. V.
    Shapoval, A. M.
    Dreval, M. B.
    Kulyk, Y. S.
    Mironov, Y. K.
    Romanov, V. S.
    Pashnev, V. K.
    Sorokovoy, E. L.
    Petrushenya, A. A.
    Ozherel’ev, F. I.
    Kozulya, M. M.
    Konovalov, V. G.
    Maznichenko, S. M.
    Garkusha, I. E.
    Powiązania:
    https://bibliotekanauki.pl/articles/146173.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    stellarator
    radio-frequency heating
    low frequency modes
    magnetic diagnostics
    Opis:
    A new antenna of ‘crankshaft’ type has been installed in the Uragan-2M device in order to increase the plasma density and heating below the ion cyclotron frequency. Antenna operation is modelled by 1D code, which solves boundary problem for time-harmonic Maxwell’s equations in radially non-uniform plasma cylinder. In recent experiments with this antenna, the SXR, CV, OV and OII emission measurements indicate that the light impurity radiation barrier is overcame at this device. Plasma with a temperature of ~50 eV exists during a short period of a few milliseconds. Then the radiation collapse comes owing to strong infl ux of impurities to the plasma column. A new magnetic diagnostics has been installed at Uragan-3M. Using it the poloidal magnetic fi eld is measured and the shift of toroidal current in major radius is registered. A miniature pinhole camera array for spatially and temporally resolved measurements of soft X-ray (SXR) plasma emission has been recently installed on the U-3M. Different shapes of the SXR emission profi le has been observed in different discharge conditions.
    Źródło:
    Nukleonika; 2016, 61, 2; 91-97
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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