NUCLEATION OF MICROCRACKS AND THEIR PROPAGATION IN GRAVITY-CAST Al-Si AND Al-Li ALLOYS

Authors

  • Justyna Grzegorek Institute of Metallurgy and Materials Science of Polish Academy of Science, Krakow
  • Anna Tarasek Institute of Metallurgy and Materials Science of Polish Academy of Science, Krakow;
  • Barbara Olszowska-Sobieraj AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland
  • Łukasz Maj Institute of Metallurgy and Materials Science of Polish Academy of Science, Krakow

DOI:

https://doi.org/10.7494/mafe.2017.43.3.179

Keywords:

gravity-cast aluminum alloys-silicon, gravity-cast aluminum alloys-lit, nucleation of microcracks, propagation of microcracks

Abstract

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.

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References

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Grzegorek J., Tarasek A., Olszowska-Sobieraj B., Lewicki P.: Ocena zmian parametrów stereologicznych faz eutektycznych w stopie AlSiMg po utwardzaniu wydzieleniowym. Wydawnictwo Naukowe Akapit, Kraków 2016

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Published

2018-06-21

How to Cite

Grzegorek, J., Tarasek, A., Olszowska-Sobieraj, B., & Maj, Łukasz. (2018). NUCLEATION OF MICROCRACKS AND THEIR PROPAGATION IN GRAVITY-CAST Al-Si AND Al-Li ALLOYS. Metallurgy and Foundry Engineering, 43(3), 179. https://doi.org/10.7494/mafe.2017.43.3.179

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