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    Wyświetlanie 1-3 z 3
    Tytuł:
    Effect of Thermal Treatment on the Structure and Mechanical Properties of Coatings Based on (Ti, Hf, Nb, Si)N
    Autorzy:
    Pogrebnjak, A.
    Komarov, F.
    Sobol, O.
    Kaverina, A.
    Shypylenko, A.
    Karwat, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/1198976.pdf
    Data publikacji:
    2014-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.46.-w
    62.20.Qp
    62.25.-g
    Opis:
    Current paper presents the results of investigating of nanostructured cathode arc vacuum evaporation coatings, based on (Ti, Hf, Nb, Si)N. Several methods of the structural and elemental analysis were used: proton microbeam, nano- and micro-electron beam, X-ray diffraction analysis. To determine tribological properties (scratch resistance, adhesive and cohesive strength) of the coatings, scratch testing were conducting. Influence of thermal annealing at temperatures 300, 500, 800, 1000C on elemental composition, microstructure, residual stress, phase composition, profiles of atomic distribution in the coatings were investigated.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 6; 1312-1315
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structure and Properties of Nano- and Microcomposite Coating Based on Ti-Si-N/WC-Co-Cr
    Autorzy:
    Pogrebnjak, A.
    Shpak, A.
    Beresnev, V.
    Il'yashenko, M.
    Komarov, F.
    Shypylenko, A.
    Kaverin, M.
    Zukovski, P.
    Kunitskyi, Y.
    Kolesnikov, D.
    Kolisnichenko, O.
    Makhmudov, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/1503969.pdf
    Data publikacji:
    2011-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.46.-w
    62.20.Qp
    62.25.-g
    Opis:
    Using the two technologies: plasma-detonation and vacuum-arc deposition, we fabricated two types of coatings: Ti-Si-N/WC-Co-Cr/steel and Ti-Si-N/steel. We found that the top coating of Ti-Si-N was nanostructured one with 12 to 15 nm grain sizes and H = 40 to 38 GPa hardness. A thick coating which was deposited using the pulsed plasma jet, demonstrated 11 to 15.3 GPa hardness, an elastic modulus (E) changing within 176 to 240 GPa, and tungsten carbide grain dimensions varying from 150 to 350 nm to several microns. An X-ray diffraction analysis shows that the coating has the following phase composition: TiN, (Ti,Si)N solid solution, WC, $W_2C$ tungsten carbides. An element analysis was performed using energy dispersive spectroscopy (microanalysis) and scanning electron microscopy, as well as the Rutherford backscattering of $\text{}^4He^{+}$ ion and the Auger electron spectroscopy. Surface morphology and structure were analyzed using scanning electron microscopy and scanning tunnel microscopy. Tests friction and resistance (cylinder-plane) demonstrated essential resistance to abrasive wear and corrosion in the solution. The decrease of grain dimensions ≤ 10 nm occurring in the top Ti-Si-N coating layer increased the sample hardness to 42 ± 2.7 GPa under $Ti_{72}-Si_8-N_{20}$ at.% concentration.
    Źródło:
    Acta Physica Polonica A; 2011, 120, 1; 100-104
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multilayered Nano-Microcomposite Ti-Al-N/TiN/$Al_2O_3$ Coatings. Their Structure and Properties
    Autorzy:
    Pogrebnjak, A.
    Shpak, A.
    Kirik, G.
    Erdybaeva, N.
    Il'yashenko, M.
    Dem'yanenko, A.
    Kunitskii, Yu.
    Kaverina, A.
    Baidak, V.
    Makhmudov, N.
    Zukowski, P.
    Komarov, F.
    Beresnev, V.
    Ruzimov, Sh.
    Shypylenko, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1503960.pdf
    Data publikacji:
    2011-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.46.-w
    62.20.Qp
    62.25.-q
    Opis:
    This paper presents the first results on formation and study of structure and properties of micro- and nanocomposite combined coatings. By means of modeling the deposition processes (deposition conditions, current density-discharge, plasma composition and density, voltage) we formed the three-layer nanocomposite coatings of Ti-Al-N/Ti-N/$Al_2O_3$. The coating composition, structure and properties were studied using physical and nuclear-physical methods. The Rutherford proton and helium ion backscattering, scanning electron microscopy with microanalysis, grazing incidence X-ray diffraction, as well as nanohardness tests (hardness) were used. Measurements of wear resistance and corrosion resistance in NaCl, HCl and $H_2SO_4$ solutions were also performed. For testing mechanical properties such characteristics of layered structures as hardness H, elastic modulus E: $H^3//E^2$ etc. were measured. It is demonstrated that the formed three-layer nanocomposite coatings have hardness of 32 to 36 GPa and elastic modulus of 328 ± 18 to 364 ± 14 GPa. Its wear resistance (cylinder-surface friction) increased by factor of 17 to 25 in comparison with the substrate (stainless steel). The layers thickness was in the range of 56-120 μm.
    Źródło:
    Acta Physica Polonica A; 2011, 120, 1; 94-99
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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