Influence of Increased Fe, Cu, and Zn Concentrations on Phase Formation in Aluminum A356 (AlSi7Mg0.3) Alloy (2024)

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  • T. Beyer2,
  • R. Kleinhans3,
  • M. Rosefort2,
  • S. Klan3,
  • A. Siemund2,
  • P. Decker2 &
  • …
  • W. Volk3

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Abstract

The production of Al alloys from end-of-life (EoL) scrap is being accompanied by increased Fe-, Cu-, and Zn content. The influence of these elements was evaluated with special emphasis on phase formation, via the application of CALPHAD methods to address the questions if a defined heat treatment can compensate for the formation of Al9Si2Fe2 and Al2Cu, how the combinations of such elements influence the formation of detrimental phases and whether a combined approach of heat treatment and alloy design is valid for higher amounts of Fe, Cu, and Zn in primary-based alloys. It was found that Cu and Zn up to established limits in common supply specifications are less detrimental to alloy properties. Fe was found to be manageable, which is in good agreement with previous findings.

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References

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Acknowledgements

The authors would like to thank Marvin Hildebrand for his great help in casting, preparing, and evaluating the samples and all project members of SUPA-Wheel for interesting discussions and the trusting cooperation.

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Authors and Affiliations

  1. TRIMET Aluminium SE, Aluminiumallee 1, 45356, Essen, Germany

    T. Beyer,M. Rosefort,A. Siemund&P. Decker

  2. Fraunhofer IGCV, Lichtenbergstraße 15, 85748, Garching, Germany

    R. Kleinhans,S. Klan&W. Volk

Authors

  1. T. Beyer

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  2. R. Kleinhans

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  3. M. Rosefort

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  4. S. Klan

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  5. A. Siemund

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  6. P. Decker

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  7. W. Volk

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Corresponding author

Correspondence to T. Beyer .

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Editors and Affiliations

  1. Oculatus Consulting, Marietta, GA, USA

    Samuel Wagstaff

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Influence of Increased Fe, Cu, and Zn Concentrations on Phase Formation in Aluminum A356 (AlSi7Mg0.3) Alloy (1)

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Beyer, T. et al. (2024). Influence of Increased Fe, Cu, and Zn Concentrations on Phase Formation in Aluminum A356 (AlSi7Mg0.3) Alloy. In: Wagstaff, S. (eds) Light Metals 2024. TMS 2024. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-50308-5_29

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Influence of Increased Fe, Cu, and Zn Concentrations on Phase Formation in Aluminum A356 (AlSi7Mg0.3) Alloy (2024)
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