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    Wyświetlanie 1-3 z 3
    Tytuł:
    Influence of the homogenization temperature on the microstructure and properties of AlSi10CuNiMn alloy
    Autorzy:
    Cais, J.
    Kraus, P.
    Lysoňková, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/102937.pdf
    Data publikacji:
    2017
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    aluminum alloy
    heat treatment
    microstructure
    intermetallic phase
    microhardness
    Opis:
    The article examines the impact of changes in homogenization temperature in the hardening process on the microstructure of aluminum alloys. The research samples were cast from AlSi10CuNiMn alloy produced by gravity casting technology in metal mold. Subsequently, the castings were subjected to a heat treatment. In an experiment with changing temperature and staying time in the process of homogenization. The microstructure of the alloy was investigated by methods of light and electron microscopy. Examination of the microstructure has focused on changing the morphology of separated particles of eutectic silicon and intermetallic phases. The analysis of intermetallic phases was supplemented by an analysis of the chemical composition – EDS analysis. Effect of heat treatment on the properties investigated alloy was further complemented by Vickers microhardness. Investigated alloy is the result of longtime research conducted at the Faculty of Production Technology and Management.
    Źródło:
    Advances in Science and Technology. Research Journal; 2017, 11, 1; 104-110
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of chemical pre-treatment on the polished surface of aluminium alloys
    Autorzy:
    Kraus, P.
    Svobodova, J.
    Cais, J.
    Lattner, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/957952.pdf
    Data publikacji:
    2016
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    sol-gel technology
    nanolayers
    aluminium alloys
    surface roughness
    SEM
    Opis:
    This paper reports the preparation and characterization of thin transparent nanolayers with phase composition ZrF4 and different modification of SiO2 with special focus on affecting the surface roughness of the material and the way of exclusion of the thin nanolayer on the surface of the polished aluminium material. The thin nanolayer was prepared by the sol-gel method. The final treatment based on PTFE was applied on the surface of some samples. This treatment is suitable for increasing wear resistance. The films were characterized with help of SEM microscopy and EDS analysis. The surface roughness was measured with classical surface roughness tester. The results on this theme have already published but not on the polished surface of the aluminium material. The results from the experiment show the problems with application of these nanolayers because a cracks were found on the surface of the material and deformations of the layer after application of the PTFE final layer. The surface layer formation is discussed.
    Źródło:
    Advances in Science and Technology. Research Journal; 2016, 10, 32; 17-23
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Probabilistic model for airport runway safety areas
    Autorzy:
    Szabo, S.
    Vittek, P.
    Kraus, J.
    Plos, V.
    Lališ, A.
    Štumper, M.
    Vajdova, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/374515.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    take-off
    landing
    runway
    safety area
    probability
    distance
    start
    lądowanie
    pas startowy
    obszary bezpieczeństwa
    prawdopodobieństwo
    odległość
    Opis:
    The Laboratory of Aviation Safety and Security at CTU in Prague has recently started a project aimed at runway protection zones. The probability of exceeding by a certain distance from the runway in common incident/accident scenarios (take-off/landing overrun/veer-off, landing undershoot) is being identified relative to the runway for any airport. As a result, the size and position of safety areas around runways are defined for the chosen probability. The basis for probability calculation is a probabilistic model using statistics from more than 1400 real-world cases where jet airplanes have been involved over the last few decades. Other scientific studies have contributed to understanding the issue and supported the model’s application to different conditions.
    Źródło:
    Transport Problems; 2017, 12, 2; 89-97
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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