In Situ Experimental Study of the Nucleation and Growth of Fe-Al Based Intermetallics: An Insight for Designing Next-Generation Recycling Friendly Aluminium Alloys - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2024

In Situ Experimental Study of the Nucleation and Growth of Fe-Al Based Intermetallics: An Insight for Designing Next-Generation Recycling Friendly Aluminium Alloys

Résumé

Today’s focus in the aluminium industry is promoting a circular economy, and meeting the US and the EU's ambition on reducing greenhouse gas emissions. This means, replacing primary aluminium by post-consumer scrap, which contains larger quantities of intermetallic forming impurities Fe, Si ... We need to develop new generations of aluminium alloys more tolerant to impurities which will enable a reduced carbon footprint through increased recycled content. To meet this objective, it is necessary to deepen our understanding of AlFeSi secondary phase nucleation and growth during aluminium alloy solidification. In this work, model 6xxx recycling friendly alloys were manufactured and unique in situ and real-time directional solidification experiments were performed. For the first time, in this work, we show real time nucleation and growth of α-AlFeSi and β-AlFeSi intermetallics in model 6xxx alloys. We discuss the effect of chemistry modification and solidification parameters on the AlFeSi phase nucleation and growth.
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Dates et versions

hal-04678474 , version 1 (27-08-2024)

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G. Salloum-Abou-Jaoude, K.-H. Cheong, S. Akamatsu, Ph. Jarry, S. Bottin-Rousseau. In Situ Experimental Study of the Nucleation and Growth of Fe-Al Based Intermetallics: An Insight for Designing Next-Generation Recycling Friendly Aluminium Alloys. TMS Annual Meeting 2024, S. Wagstaff, Mar 2024, Orlando (FL), United States. pp.1048-1054, ⟨10.1007/978-3-031-50308-5_132⟩. ⟨hal-04678474⟩
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