| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Scandium Extraction and Use in Aluminum Alloys
|
| Presentation Title |
L12-Strengthened Aluminum Alloys for Conventional and Additive Manufacturing |
| Author(s) |
Amir R. Farkoosh, David C. Dunand, David N. Seidman |
| On-Site Speaker (Planned) |
Amir R. Farkoosh |
| Abstract Scope |
Efforts at Northwestern University in developing aluminum alloys for high-temperature applications have been ongoing since 1998. During these three decades of progress, we have steadily enhanced the mechanical properties of aluminum alloys and increased their operating temperatures, which was achieved by adding slow-diffusing elements such as Sc and Zr, or other transition metals and rare-earth elements in combination. Recently, we have extended these strategies to design aluminum alloys for additive manufacturing (AM), such as our heat-resistant NUAdd alloy series and Al-Ce eutectic alloys, utilizing similar alloy design principles. We will summarize our recent and past research on aluminum alloys strengthened with L12-ordered coherent Al3(Sc,Zr)-nanoprecipitates often with a core-shell structure. We will also cover the broader scope of alloy design, where multiple strengthening mechanisms are combined to achieve ultrastrong alloys with exceptional creep resistance. We outline the principles guiding the development of these advanced alloys, highlighting their unique characteristics and advantages. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Additive Manufacturing, Other, |