Influence of Chemical Composition on Porosity in Aluminium Alloys

Kucharčík L.; Brůna M.; Sládek A.

doi:10.2478/afe-2014-0026

Archives of Foundry Engineering (Jun 2014)

Influence of Chemical Composition on Porosity in Aluminium Alloys

Kucharčík L.,
Brůna M.,
Sládek A.

Affiliations

Kucharčík L.: University of Žilina, Faculty of Mechanical Engineering, Department of Technological Engineering, Univerzitná 1, 01026 Žilina, Slovakia
Brůna M.: University of Žilina, Faculty of Mechanical Engineering, Department of Technological Engineering, Univerzitná 1, 01026 Žilina, Slovakia
Sládek A.: University of Žilina, Faculty of Mechanical Engineering, Department of Technological Engineering, Univerzitná 1, 01026 Žilina, Slovakia

DOI: https://doi.org/10.2478/afe-2014-0026
Journal volume & issue: Vol. 14, no. 2
pp. 5 – 8

Abstract

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Porosity is one of the major defects in aluminum castings, which results is a decrease of a mechanical properties. Porosity in aluminum alloys is caused by solidification shrinkage and gas segregation. The final amount of porosity in aluminium castings is mostly influenced by several factors, as amount of hydrogen in molten aluminium alloy, cooling rate, melt temperature, mold material, or solidification interval. This article deals with effect of chemical composition on porosity in Al-Si aluminum alloys. For experiment was used Pure aluminum and four alloys: AlSi6Cu4, AlSi7Mg0, 3, AlSi9Cu1, AlSi10MgCu1.

Published in Archives of Foundry Engineering

ISSN: 2299-2944 (Online)
Publisher: Polish Academy of Sciences
Country of publisher: Poland
LCC subjects: Technology: Technology (General)
Website: https://journals.pan.pl/afe

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