| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Melt Processing, Casting and Recycling
|
| Presentation Title |
In Situ Experimental Study of Nucleation and Growth of Fe-Al Based Intermetallics: An Insight for Designing Next-generation Recycling Friendly Alumninium Alloys |
| Author(s) |
Georges Salloum-Abou-Jaoude, Kuan Hong Cheong, Silvere Akamatsu, Philippe Jarry, Sabine Bottin-Rousseau |
| On-Site Speaker (Planned) |
Georges Salloum-Abou-Jaoude |
| Abstract Scope |
Today’s focus in the aluminium industry is promoting a circular economy, and meeting the US and the EU's ambition of reducing greenhouse gas emissions. This means, replacing primary aluminium with post-consumer scrap, which contains larger quantities of intermetallic forming impurities, particularly Fe and Si, which are detrimental to mechanical properties. We need to develop new generations of impurity-tolerant aluminium alloys enabling 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. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Solidification, Recycling and Secondary Recovery, Aluminum |