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VEVERKA, A., DIVIŠ, V., ROUČKA, J.
Originální název
Influence of the Density-Index on the Porosity in Al-Si Casting Alloys
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
The principle of this experiment was in an analysis of the influence of the Density Index and different cooling rate on the porosity according to metallurgical changes of molten metal (gassing, degassing). Simple castings made from AlSi9Cu3 alloy were poured into permanent mould and sand moulds to get a different cooling rates. Porosity was measured on the microstructure of each sample. For this experiment "the reduced pressure test" was used. Significant values were shape factor, size and distribution of the bubbles. The mechanical properties such as tensile strength (Rm) and yield strength (Rp0,2), were measure on these samples. The tensile strength is seriously decreased as the hydrogen concentration increases. The yield strength is only very slightly affected.
Klíčová slova v angličtině
Density Index, porosity, cooling rate, shape factor, reduced pressure test
Autoři
Vydáno
1. 4. 2004
Nakladatel
Fachschaft Metallurgie und Werkstofftechnik der RWTH Aachen
Místo
Aachen
Strany od
270
Strany do
274
Strany počet
5
BibTex
@inproceedings{BUT12564, author="Aleš {Veverka} and Vladimír {Diviš} and Jaromír {Roučka}", title="Influence of the Density-Index on the Porosity in Al-Si Casting Alloys", booktitle="11. Internationaler Studententag der Metalurgie", year="2004", series="1", number="1", pages="270--274", publisher="Fachschaft Metallurgie und Werkstofftechnik der RWTH Aachen", address="Aachen" }