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Wyszukujesz frazę "AlSi7Mg0.3" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Effect of Ti on Selected Properties of AlSi7Mg0.3Cu0.5 Alloy with Constant Addition of Zr
    Autorzy:
    Bolibruchová, D.
    Kuriš, M.
    Matejka, M.
    Major-Gabryś, K.
    Vicent, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2049632.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    AlSi7Mg0.3Cu0.5
    investment casting
    zirconium
    titanium
    increasing mechanical properties
    Opis:
    The article is focused on the synergic effect of constant content of Zr and higher content of Ti on mechanical properties Al-Si alloy. The Ti additions were in proportions of 0.1, 0.2 and 0.3 wt.% Ti. The casting process was carried out in ceramic molds, created for the investment casting technology. Half of the experimental samples were processed by precipitation curing T6. The measured results were compared with primary alloy AlSi7Mg0.3 and experimental alloy AlSi7Mg0.3Cu0.5Zr0.15. In variant with addition 0.1 wt. %, the tensile strength Rm increased by 1,5% but the elongation AM decreased to 40%. Variants with 0.2 and 0.3 wt. % addition of Ti achieved similar Rm but approximately 40% decrease in AM. However, it is interesting that yield strength Rp0.2 increased for all variants by approximately 14 to 20%. The results point out the possibility of developing a more sophisticated alloy for automotive industry.
    Źródło:
    Archives of Metallurgy and Materials; 2021, 66, 1; 65-72
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Casting Wall Thickness on Crystallisation Under Pressure
    Autorzy:
    Pastirčák, R.
    Ščury, J.
    Brůna, M.
    Bolibruchová, D.
    Jakubski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/353947.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    squeeze casting
    AlSi7Mg0.3 alloy
    AlSi12 alloy
    pressure
    wall thickness
    Opis:
    The paper deals with squeeze casting technology. For this research a direct squeeze casting method has been chosen. The influence of process parameters variation (casting temperature, mold temperature, pressure) on mechanical properties and structure will be observed. The thicknesses of the individual walls were selected based on the use of preferred numbers and series of preferred numbers (STN ISO 17) with the sequence of 3.15, 4.00, 5.00, 6.00 and 8.00 mm. The width of each wall was 22 mm with a length of 100 mm. As an experimental material was chosen the AlSi12 and AlSi7Mg0.3 alloys. The mechanical properties (UTS, E) for individual casting parameters and their individual areas of different thicknesses were evaluated. In the structure the influence of pressure on the change of the eutectic morphology, the change of the volume of eutectic and the primary alpha phase, the effect of the pressure on the more fine-grain and the regularization of the structure were evaluated.
    Źródło:
    Archives of Metallurgy and Materials; 2018, 63, 4; 1889-1893
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Role of Mn in Aluminium Alloys with a Higher Iron Content
    Autorzy:
    Bolibruchová, D.
    Podprocká, R.
    Pastirčák, R.
    Major-Gabryś, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/355687.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    AlSi7Mg0.3
    β-Al5FeSi phase
    manganese
    thermal analysis
    Opis:
    The paper deals with the influence of manganese in AlSi7Mg0.3 alloy with higher iron content. Main aim is to eliminate harmful effect of intermetallic – iron based phases. Manganese in an alloy having an iron content of about 0.7 wt. % was graded at levels from 0.3 to 1.4 wt. %. In the paper, the effect of manganese is evaluated with respect to the resulting mechanical properties, also after the heat treatment (T6). Morphology of the excluded intermetallic phases and the character of the crystallisation of the alloy was also evaluated. From the obtained results it can be concluded that the increasing level of manganese in the alloy leads to an increase in the temperature of the β-Al5FeSi phase formation and therefore its elimination. Reducing the amount of β-Al5FeSi phase in the structure results in an improvement of the mechanical properties (observed at levels of 0.3 to 0.8 wt. % Mn). The highest addition of Mn (1.4 wt.%) leads to a decrease in the temperature corresponding to the formation of eutectic silicon, which has a positive influence on the structure, but at the same time the negative sludge particles were also present.
    Źródło:
    Archives of Metallurgy and Materials; 2018, 63, 4; 1883-1888
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Utilisation of mould temperature change in eliminating the Al5FeSi phases in secondary AlSi7Mg0.3 alloy
    Autorzy:
    Bolibruchová, D.
    Richtárech, L.
    Dobosz, S. M.
    Major-Gabryś, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/355395.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    AlSi7Mg0,3 alloy
    correctors of iron
    recycled materials
    iron based intermetallic phase
    thermal analysis
    Opis:
    This article describes the impact of the metal mould temperature change in eliminating the adverse effect of iron in the AlSi7Mg0.3 alloy. The kind of phases based on iron to be formed in aluminium alloys is determined by the alloy chemical composition, the melt overheating temperature prior to casting, and the cooling rate during crystallisation. In the experiment, we used three various mould temperatures, and their impact on the possible change in the adverse Al5FeSi phase, excreted in a needle form to a more compact form of Chinese writing or skeleton units. The experimental part did not use melt overheat that would result in impairment of the melt, for example due to increased gassing of the melt, as well as in a greater load on the smelting unit, thus resulting in increased energy expenditure. We can conclude from the obtained results that the mould temperature change does not have an adequate effect in eliminating the adverse effect of iron in Al-Si-Mg alloys.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 1; 339-344
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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