| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
REWAS 2022: Coupling Metallurgy and Sustainability: An EPD Symposium in Honor of Diran Apelian
|
| Presentation Title |
Increasing Secondary Alloy Usage in Aluminum Die Casting Industry |
| Author(s) |
Alan A. Luo |
| On-Site Speaker (Planned) |
Alan A. Luo |
| Abstract Scope |
Recycling aluminum uses only about 5% of the energy needed for primary aluminum production. Current aluminum die castings for structural applications in the automotive and aerospace industries are made of primary alloys with strict control on impurity elements such as iron and zinc. Increasing the use of aluminum scrap in die casting applications (structural and non-structural) will lead to significant savings of energy and reduction of CO2 emissions. This talk reviews the role of iron content in die cast alloys based on thermodynamic modeling and microstructure modification. Our research found that proper microalloying can neutralize the detrimental effect of Fe-containing intermetallic phases in structural die alloys. Our die cast experiments show that Al-Si-Mg-Mn structural alloys containing about 0.5% Fe have similar mechanical properties to those of primary alloy with less than 0.2% Fe. This research provide scientific foundation for increasing secondary alloy usage in aluminum die casting industry. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Recycling and Secondary Recovery, ICME |