About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Scandium Extraction and Use in Aluminum Alloys
|
| Presentation Title |
The Influence of Sc and Zr Dispersoids on the Extrusion Performance of a 6005A Alloy |
| Author(s) |
Eli Harma, Paul Sanders |
| On-Site Speaker (Planned) |
Eli Harma |
| Abstract Scope |
Texture and the peripheral coarse grain (PCG) in 6xxx aluminum extrusions affect mechanical properties and bendability. Extrusion temperature and speed influence texture and PCG layer formation, but dispersoids can counteract these effects. It is proposed that additions of Sc and Zr dispersoid formers will aid in reducing recrystallized texture and PCG size given their smaller size and greater number compared to traditional dispersoids. Two alloys, 6005A and 6005+, where Sc and Zr replaced the Cr and Mn additions, were cast and extruded at two speeds and temperatures followed by press quenching. The 6005+ alloy has higher YS and UTS but lower ductility and bendability. EBSD showed that both alloys had similar fractions of recrystallized texture component, but the 6005+ alloy had the thinnest PCG layer, except at the highest extrusion temperature and speed. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Extraction and Processing, Mechanical Properties |