About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Enabling Castable High-Strength Al–Mn–Mg Alloys via Nano-treating |
| Author(s) |
Guan-Cheng Chen, Alexander Killips, Xiaochun Li |
| On-Site Speaker (Planned) |
Guan-Cheng Chen |
| Abstract Scope |
3XXX series aluminum alloys are valued in heat exchange applications for their corrosion resistance, thermal stability, and good brazability. However, their commercial use is primarily limited to wrought and machined products, as conventional Al–Mn alloys are difficult to cast due to hot cracking and brittleness. Additionally, their relatively low strength restricts structural applications. This study aims to develop a castable Al–Mn–Mg alloy with enhanced mechanical performance by leveraging nanotechnology-promoted microstructure control. A small volume percentage of nanoparticles (0.5 vol.%) was introduced to control Al₆Mn phase growth, while Mn and Mg contents were systematically optimized to balance strength and ductility. Results show that nanoparticle addition not only improves mechanical properties but also delays the ductility loss typically observed at high Mn levels. The optimized composition demonstrates superior strength compared to commercial AA3004 while maintaining castability, offering a promising route to low-cost, high-performance aluminum alloys for thermal management applications. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Nanotechnology, Process Technology |