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    Wyświetlanie 1-6 z 6
    Tytuł:
    Tribological properties of Stellite 6 cobalt alloy implanted with nitrogen ions determined in the tests conducted in engine fuel atmosphere
    Autorzy:
    Kamiński, M.
    Budzyński, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/102789.pdf
    Data publikacji:
    2017
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    Stellite 6
    tribology
    cobalt alloy
    engine
    automotive industry
    Opis:
    The influence of nitrogen ion implantation on the tribological properties of Stellite 6 cobalt alloy was investigated. The tribological tests were conducted using a pin / ball on disc in the atmosphere of engine fuels. In the study, cobalt alloy was implanted with 60 keV nitrogen ions at the fluence of 1∙1016 and 5∙1016 N+/cm2. The wear trace was measured using the Form Talysurf Intra Taylor Hobson profilometer. The results demonstrate that nitrogen ion implantation affects the friction coefficient and wear. The effect of nitrogen ion implantation depends on the environment in which the tribological test is carried out, the sample temperature and the presence of friction products in the friction node.
    Źródło:
    Advances in Science and Technology. Research Journal; 2017, 11, 4; 215-219
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Long-Range Effect in Ion-Implanted Titanium Alloys
    Autorzy:
    Budzynski, P.
    Sielanko, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1402208.pdf
    Data publikacji:
    2015-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    68.55.Ln
    62.20.Qp
    61.82.Bg
    61.80.-x
    Opis:
    Surface modification of titanium alloy (Ti6Al4V) by nitrogen ion implantation and ion beam-assisted deposition (C, N) was investigated. The depth distribution of implanted nitrogen atoms was analysed using the Rutherford backscattering technique. Nitrogen implantation reduces the coefficient of friction and wear. A better effect can be obtained when nitrogen implantation is combined with carbon deposition. Based on the changes in the coefficients of friction and wear as well as profilograms of wear tracks, the improvement of the tribological properties was found at a depth exceeding nearly 5 times the range of the implanted nitrogen ions. Identification of the long-range effect for Ti6Al4V alloy was performed on the basis of tribological analyses. This study is a continuation of research conducted for AISI 316L and H11 steel.
    Źródło:
    Acta Physica Polonica A; 2015, 128, 5; 841-844
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structure of water mist stream and its impact on cooling efficiency of casting die
    Autorzy:
    Władysiak, R.
    Budzyński, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/382910.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innowacyjne technologie odlewnicze
    innowacyjne materiały odlewnicze
    odlewanie kokilowe
    mgła wodna
    mikrostruktura
    strumień ciepła
    innovative foundry technologies
    innovative foundry material
    casting die cooling
    water mist
    microstructure
    heat flux
    Opis:
    The work is a continuation of research on the use water mist cooling in order to increase efficiency of die-casting aluminum alloys. The paper presents results of research and analysis process, spraying water and generated a stream of water mist, the effect of the type of nozzle, the nozzle size and shape of the emitting of the water mist on the wall surface of casting die on the microstructure and geometry of water mist stream and cooling efficiency. Tests were used to perform high-speed camera to record video in the visible and infrared camera. Results were used to develop a computerized image analysis and statistical analysis. The study showed that there are statistical relationships between water and air flow and geometry of the nozzle and nozzle emitting a stream of microstructure parameters of water mist and heat the incoming stream. These relationships are described mathematical models that allow you to control the generating of adequate stream of water mist and a further consequence, the cooling efficiency of casting die.
    Źródło:
    Archives of Foundry Engineering; 2012, 12, 2; 251-260
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanical Properties of the Stellite 6 Cobalt Alloy Implanted with Nitrogen Ions
    Autorzy:
    Budzyński, P.
    Kamiński, M.
    Wiertel, M.
    Pyszniak, K.
    Droździel, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030127.pdf
    Data publikacji:
    2017-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    68.55.Ln
    62.20.Qp
    61.82.Bg
    61.80.-x
    Opis:
    The effect of nitrogen ion implantation on Stellite 6 cobalt alloy was investigated. In this research, cobalt alloy was implanted with 65 keV nitrogen ions at the fluence of (1÷10)×10¹⁶ N⁺/cm². The distribution of implanted nitrogen ions and vacancies produced by them was calculated using the SRIM program. The surface morphology was examined and the elemental analysis was performed using scanning electron microscopy, energy dispersive X-ray spectroscopy and grazing incidence X-ray diffraction. The wear tests were conducted with the use of the pin-on-disc method. The results demonstrate that implantation with nitrogen ions significantly reduces the friction factor and wear. The friction coefficient of the implanted sample at the fluence of 1×10¹⁷ N⁺/cm² increased to the values characteristic of an unimplanted sample after 5000 measurement cycles. The depth of the worn trace was about 2.0 μm. This implies that the thickness of the layer modified by the implantation process is ≈2.0 μm and exceeds the initial range of the implanted ions by an order of magnitude. This is referred to as a long-range implantation effect. The investigations have shown that the long-range effect is caused by movement of not only implanted nitrogen atoms but also carbon dopant atoms towards the friction zone. Diffusion of carbon atoms has been documented here for the first time. Furthermore, the increased content of oxygen atoms on the track bottom indicates a dominant oxidative wear of the Stellite samples after nitrogen implantation with the energy 65 keV and the fluences of 5×10¹⁶ and 10¹⁷ N⁺/cm².
    Źródło:
    Acta Physica Polonica A; 2017, 132, 2; 203-205
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Relationship between yield components and seed yield obtained from oil crops of the family Brassicaceae
    Związek pomiędzy komponentami plonu a plonem nasion roślin oleistych z rodziny Brassicaceae
    Autorzy:
    Jankowski, K.J.
    Budzynski, W.S.
    Hulanicki, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1201121.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    oil crop
    yield component
    seed yield
    Brassicaceae
    correlation analysis
    Źródło:
    Rośliny Oleiste - Oilseed Crops; 2015, 36
    1233-8273
    Pojawia się w:
    Rośliny Oleiste - Oilseed Crops
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The study of crystal and magnetic properties of MnNi0.85Fe0.15Ge
    Autorzy:
    Budzyński, M.
    Valkov, V. I.
    Golovchan, A. V.
    Mitsiuk, V. I.
    Sivachenko, A. P.
    Surowiec, Z.
    Tkachenka, T. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/148187.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    Mössbauer effect
    magnetic interaction
    hexagonal structure
    Opis:
    Magnetic and Mössbauer measurements were performed for MnNi0.85Fe0.15Ge. The Mössbauer data indicate that Fe atoms in MnNi0.85Fe0.15Ge are randomly distributed over two types of metal sites in hexagonal structure. At 77 K, the hyperfi ne magnetic fi elds at Fe located in different crystal sites have similar values of about 12.7 and 12.3 T. The random site distribution of the iron atoms in the non-magnetic hexagonal phase at high temperatures is confi rmed by the theoretical calculations in fully relativistic Korringa−Kohn−Rostoker (KKR) method.
    Źródło:
    Nukleonika; 2015, 60, 1; 11-14
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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