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    Wyświetlanie 1-2 z 2
    Tytuł:
    Influence of Al5FeSi Phases on the Cracking of Castings at Al-Si Alloys
    Autorzy:
    Hren, I.
    Svobodova, J.
    Michna, Š.
    Powiązania:
    https://bibliotekanauki.pl/articles/380066.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    aluminium alloy
    intermetallic phase
    low pressure casting
    alloy structure
    iron contamination
    stop aluminium
    faza międzymetaliczna
    odlewanie niskociśnieniowe
    struktura stopu
    zanieczyszczenie żelazem
    Opis:
    The research described in this contribution is focused on fractographic analysis of the fracture area of newly developed eutectic silumin type AlSi9NiCuMg0.5 (AA 4032), which was developed and patented by a team of staff of the Faculty of Mechanical Engineering. The paper presents determination of the cause of casting cracks in operating conditions. Fractographic analysis of the fracture area, identification of the structure of the casting, identification of structural components on the surface of the fracture surface and chemical analysis of the material in the area of refraction were performed within the experiment. Al-Si alloys with high specific strength, low density, and good castability are widely used in pressure-molded components for the automotive and aerospace industries. The results shown that the inter-media phases Fe-Al and Fe-Si in aluminium alloys lead to breakage across the entire casting section and a crack that crossed the entire cross section, which was confirmed by EDS analysis.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 4; 120-124
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aluminum Alloy Development for Wheel Production by Low Pressure Die Casting with New Generation Computational Materials Engineering Approaches
    Autorzy:
    Yağcı, T.
    Cöcen, Ü.
    Çulha, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/2079795.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    aluminum alloy
    foundry industry
    wheels
    low pressure casting
    materials engineering
    mechanical properties
    microstructural design
    stop aluminium
    przemysł odlewniczy
    koła
    odlewanie niskociśnieniowe
    inżynieria materiałowa
    właściwości mechaniczne
    projektowanie mikrostrukturalne
    Opis:
    Computational Materials Engineering (CME) is a high technological approach used to design and develop new materials including the physical, thermal and mechanical properties by combining materials models at multiple techniques. With the recent advances in technology, the importance of microstructural design in CME environments and the contribution that such an approach can make in the estimation of material properties in simulations are frequently discussed in scientific, academic, and industrial platforms. Determination of the raw material characteristics that can be modeled in a virtual environment at an atomic scale by means of simulation programs plays a big role in combining experimental and virtual worlds and creating digital twins of the production chain and the products. In this study, a new generation, alternative and effective approach that could be used to the development of Al-Si based wheel casting alloys is proposed. This approach is based on the procedure of optimizing the physical and thermodynamic alloy properties developed in a computer environment with the CME technique before the casting phase. This article demonstrates the applicability of this approach in alloy development studies to produce Al-Si alloy wheels using the low pressure die casting (LPDC) method. With this study, an alternative and economical way is presented to the alloy development studies by trial and error in the aluminum casting industry. In other respects, since the study is directly related to the automotive industry, the reduction in fuel consumption in vehicles is an expected effect, as the new alloy aims to reduce the weight of the wheels. In addition to conserving energy, reducing carbon emissions also highlights the environmental aspects of this study.
    Źródło:
    Archives of Foundry Engineering; 2021, 21, 4; 35-46
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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