Manufacturing Technology 2022, 22(4):436-443 | DOI: 10.21062/mft.2022.057

Effect of Higher Iron Content and Manganese Addition on the Corrosion Re-sistance of AlSi7Mg0.6 Secondary Alloy

Martin Mikolajčík ORCID..., Eva Tillová ORCID..., Lenka Kuchariková ORCID..., Lucia Pastierovičová ORCID..., Mária Chalupová ORCID..., Milan Uhríčik ORCID..., Zuzana ©urdová ORCID...
Faculty of Mechanical Engineering, Department of Materials Engineering University of ®ilina, Univerzitná 8215/1, 010 26 ®ilina, Slovakia

The use of secondary aluminium alloys gives manufacturers in many industries the opportunity to produce their products more economically and environmentally friendly. The secondary aluminium alloy production is sustainable in the long term. As aluminium does not lose its excellent properties through recycling, secondary aluminium alloys have the potential to replace primary aluminium in many applications. However, recycled aluminium alloys have the disadvantage of insufficient sorting and thus a higher content of impurities in their chemical composition. The most common undesirable element in Al-Si-Mg cast alloys is iron. It adversely affects mechanical properties, fatigue behaviour and corrosion resistance. The influence of iron can be reduced by the addition of manganese. This paper deals with the effect of manganese on the morphology of Fe-phases and corrosion resistance of AlSi7Mg0.6 secondary alloy with higher iron content (0.75 % and 1.26 %).

Keywords: AlSi7Mg0.6 cast alloy, Corrosion resistance, Audi test, Higher iron content, Manganese addition
Grants and funding:

The research was supported by the Scientific Grand Agency of the Ministry of Education of Slovak Republic and Slovak Academy of Sciences, VEGA 09/0398/19, KEGA 016®U-4/2020, the project to support young researchers at UNIZA, ID project 12715 (Kuchariková) and project 313011ASY4 „Strategic implementation of additive technologies to strengthen the intervention capacities of emergencies caused by the COVID-19 pandemic“

Received: July 30, 2022; Revised: August 30, 2022; Accepted: October 4, 2022; Prepublished online: October 6, 2022; Published: October 17, 2022  Show citation

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Mikolajčík M, Tillová E, Kuchariková L, Pastierovičová L, Chalupová M, Uhríčik M, ©urdová Z. Effect of Higher Iron Content and Manganese Addition on the Corrosion Re-sistance of AlSi7Mg0.6 Secondary Alloy. Manufacturing Technology. 2022;22(4):436-443. doi: 10.21062/mft.2022.057.
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