THE EFFECT OF MANGANESE ON Fe-RICH INTERMETALLIC PHASES IN PROGRESSIVE SECONDARY AlSi7Mg0.6 ALLOY

Lucia PastierovičováEva Tillová; Lenka Kuchariková; Eva Tillová; Mária Chalupová; Miroslaw Bonek

doi:10.18485/aeletters.2022.7.3.2

Applied Engineering Letters (Sep 2022)

THE EFFECT OF MANGANESE ON Fe-RICH INTERMETALLIC PHASES IN PROGRESSIVE SECONDARY AlSi7Mg0.6 ALLOY

Lucia PastierovičováEva Tillová,
Lenka Kuchariková,
Eva Tillová,
Mária Chalupová,
Miroslaw Bonek

Affiliations

Lucia PastierovičováEva Tillová: University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic
Lenka Kuchariková: University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic
Eva Tillová: University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic
Mária Chalupová: University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic
Miroslaw Bonek: Faculty of Mechanical Engineering, Department of Materials Engineering and Biomaterials, Silesian University of Technology, Konarskiego 18A Street, 44-100 Gliwice, Poland

DOI: https://doi.org/10.18485/aeletters.2022.7.3.2
Journal volume & issue: Vol. 7, no. 3
pp. 100 – 107

Abstract

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The contribution describes the major problem with the secondary (recycled) alloys as the presence of unwanted elements due to the remelting of Alscrap negatively affecting the quality of AlSi7Mg0.6 cast alloy. Iron is the most harmful impurity in the secondary Al-Si alloys, leading to the formation of β-Fe-rich (Al5FeSi) intermetallic phases that promotes forming of casting defects such as porosity and shrinkage by its needle-like shape. Suitable neutralizer alloying elements, such as Mn, influence the formation of Fe-needle-like phases and lead to the formation of less harmful Mncontaining α-Fe-rich phases. To optimize the morphology and properties of alloys, it is necessary to study the effects of individual alloying elements. Therefore, this study is focused on the effect of Mn addition on Fe-rich intermetallic phases and casting defects, thus the evaluation of its shape and distribution in AlSi7Mg0.6 secondary alloy.

Published in Applied Engineering Letters

ISSN: 2466-4677 (Print); 2466-4847 (Online)
Publisher: The Serbian Academic Center
Country of publisher: Serbia
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: https://www.aeletters.com/

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