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Wyszukujesz frazę "AlSi7Mg0.3" wg kryterium: Temat


Wyświetlanie 1-2 z 2
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
    Wyświetlanie 1-2 z 2

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