About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Application of ICME Methods to Advance Sustainable Metallurgy and Metals Processing
|
| Presentation Title |
Scheil-Gulliver Constituent Diagrams for Designing Recycled Al-Alloys |
| Author(s) |
Sunyong Kwon, Gerald L Knapp, Ying Yang, Alex J. Plotkowski |
| On-Site Speaker (Planned) |
Gerald L Knapp |
| Abstract Scope |
Large-scale Fe-containing intermetallic compounds are primarily responsible for the degraded mechanical properties of recycled Al-alloys. These detrimental intermetallic compounds predominantly form as primary phases during solidification. To design Al-alloys with enhanced tolerance of Fe and Si contents, the microstructural information (e.g. primary and eutectic phases) during solidification is essential rather than phase stability information at equilibrium. Here, we introduce Scheil-Gulliver constituent diagrams for designing Al-alloys with improved tolerance in Fe and Si contents. We performed high-throughput Scheil-Gulliver solidification simulations for the Al-Fe-Mg-Si and Al-Fe-Mg-Si-X (X = Co, Cu, Ni, Cr, Mn, and Zn) systems. We present the analyses of microstructural information i.e., Scheil-Gulliver constituents to search for the alloy chemistries with reduced amount of Fe-containing primary intermetallic compounds. Furthermore, the possibility of suppressing detrimental phases by adding an alloying element will be discussed. This work was sponsored by the DOE Vehicle Technology Office’s Lightweight Metal Core Program. |