Behavior of Scandium in Aluminum Alloys of Different Alloying Systems

Abstract:

Microstructure and composition of elements in phases of homogenized ingots in aluminum alloys of various alloying systems: Al-Mg-Mn-Si, Al-Mg-Si-Cu, and Al-Zn-Mg-Cu, were examined using a method of scanning electronic microscopy and X-ray microanalysis. Besides basic alloying elements of magnesium, zinc, copper, silicon, and manganese, alloy composition contained additional alloying elements, including zirconium and scandium. Presence of intermetallic compounds of various chemical composition insoluble during ingot homogenization was found in microstructure of examined samples. It is found that zirconium and scandium are jointly present in composition of some intermetallic compounds containing additional alloying elements of alloys.

• Periodical: Materials Science Forum (Volumes 794-796)
• Pages: 1002-1007
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.794-796.1002
• Online since: June 2014
• Authors: Boris V. Ovsyannikov*, Viktor M. Zamyatin
• Keywords: Aluminium Alloy, Composition, Ingot, Microstructure, Phase

References

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