|Zofia Kwak, Aldona Garbacz-Klempka, Małgorzata Perek-Nowak|
Microstructure of selected 7xxx series aluminum alloys obtained by semi-continuous castingAbstract
The study was conducted for two selected 7xxx series aluminum alloys according to PN-EN 573-3:2010 - Polish version. The analysis of ingots was carried out on 7003, 7003S and 7010, 7010K alloys with a similar ratio of zirconium content. Symbols S and K are our internal modifications, still compatible with the standard. The ingots were made by semi-continuous casting. Aluminum alloys of this series, with improved properties, are intended for plastic-processing.
Keywords: Al-Zn-Mg-Cu alloys, DC casting, quality of ingots, microstructure, micro-structural analysis with scanning electron microscope with included SEM-EDS, phase composition by X-Ray Diffraction (XRD),
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