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Browsing by Subject "nucleation of microcracks"

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    Item type:Article, Access status: Open Access ,
    Nucleation of microcracks and their propagation in gravity-cast Al-Si and Al-Li alloys
    (Wydawnictwa AGH, 2017) Grzegorek, Justyna; Tarasek, Anna; Olszowska-Sobieraj, Barbara; Maj, Łukasz
    This article discusses the nucleation and propagation of microcracks in gravity-cast aluminum- -silicon and aluminum-lit alloys. Microstructural observations were made on both an optical microscope and a scanning electron microscope. In addition, hardness measurements were made using the Vickers indenter and strength tests - a static compression test. Experiments have allowed us to determine the very important differences in both the nucleation and propagation of microcracks emerging after crossing the yield point between gravity-cast aluminum-silicon aluminum alloys.