Original scientific paper

Influence of ecologically friendly cores on surface quality of castings based on magnesium alloys

P. Lichý ; VSB-TU Ostrava, FMME, Ostrava, Czech Republic
J. Beňo ; VSB-TU Ostrava, FMME, Ostrava, Czech Republic
P. Lackova ; Technical University of Košice, Slovakia
M. Morys ; Faculty of Mechanical Engineering, Silesian University of Technology, Poland

Abstract

Constructional materials as Al - alloys can be replaced by other materials with high strength to low mass density ratio, e.g. Mg-alloys. In order to pre-casting of holes and cavities cores based on pure inorganic salt can be applied due to easy cleaning of even geometrically complex pre-cast holes. This technology is applied mainly for gravity and low-pressure casting technology. This contribution is aimed at studying of mutual interaction of the Mg-alloy and the salt core. Experiments were focused on surface quality; macro- and microstructure of testing casting samples determination. Metallographic analysis and scanning electron microscope (SEM) with X-ray energy-dispersion superficial and spot microanalysis (EDAX) were employed.

Keywords

magnesium alloys; microstructure; salt cores; castings

Hrčak ID:

119536

URI

https://hrcak.srce.hr/119536

Publication date:

1.7.2014.

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