Communications - Scientific Letters of the University of Zilina 2015, 17(3):92-97 | DOI: 10.26552/com.C.2015.3.92-97

Influence of Vanadium and Chromium Addition on Morphology and Composition of Iron Based Phases in AlSi10MgMn Alloy

Maria Zihalova1, Dana Bolibruchova1, Dalibor Vojtech2
1 Department of Technological Engineering, Faculty of Mechanical Engineering, University of Zilina, Slovakia
2 Institute of Chemical Technology, Department of Metals and Corrosion Engineering, Faculty of Chemical Technology, Prague, Czech Republic

Application of secondary Al-Si alloys is mostly influenced by amount of impurities. Detrimental effect of iron, as the most harmful impurity, refers mainly to morphology of iron intermetallic phases. Morphology of iron phases can be influenced by several methods from which the most common is addition of some elements. In primary alloys manganese is commonly used, but its influence is not such favourable in high iron levels because of so-called sludge phase formation. Higher iron content thus requires other alloying elements which can be vanadium, chromium or others. In this article, vanadium and mutual vanadium and chromium influence on iron phase morphology and chemical composition is analysed by optical microscopy, SEM observations and EDX analysis.

Keywords: AlSi10MgMn alloy; iron based intermetallic phase; vanadium; chromium

Published: August 31, 2015  Show citation

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Zihalova, M., Bolibruchova, D., & Vojtech, D. (2015). Influence of Vanadium and Chromium Addition on Morphology and Composition of Iron Based Phases in AlSi10MgMn Alloy. Communications - Scientific Letters of the University of Zilina, 17(3), 92-97. doi: 10.26552/com.C.2015.3.92-97
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