Anzeige
Erschienen in:
2016 | OriginalPaper | Buchkapitel
Oxidation Behavior of Al2Ca Added Al-5Mg Alloy in the Liquid State
verfasst von : Young-Ok Yoon, Seong-Ho Ha, Gil-Yong Yeom, Hyun Kyu Lim, Shae K. Kim
Erschienen in: Light Metals 2013
Verlag: Springer International Publishing
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
The aim of the present study was to investigate the effect of Al2Ca added Mg addition on the oxidation behavior of Al-5Mg alloy in the liquid state with TGA and melt oxidation test. Results of TG analysis showed that while the weight gain of Al-5Mg was 10%, Al2Ca added Al-5Mg had the weight gain to 0.01%. Comparison between the surface and cross sectional appearance showed that there were a large number of pores and oxide clusters in Al-5Mg alloy, while pore was not observed in Al2Ca added Al-5Mg alloy. SEM and EDS studies revealed that the formation of pores in Al-5Mg alloy was mainly due to the transformation of MgO to MgAl2O4 as the holding time was extended. In the case of Al2Ca added Al-5Mg alloys, the existence of MgAl2O4 was not observed. On the other hand, MgO/CaO mixed layer existed and would act as a protective layer.