About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys: Development and Manufacturing
|
Presentation Title |
Discovering high Fe-tolerant Al-Mn-Fe-Si alloys using laser directed energy deposition |
Author(s) |
Qingyu Pan, Monica Kapoor, Xiaoyuan Lou, John Carsley |
On-Site Speaker (Planned) |
Qingyu Pan |
Abstract Scope |
Iron is unavoidable but detrimental in Al alloys as it forms plate- or needle-like Fe-containing intermetallic compounds (FIMCs). Developing a new type of Al alloy with higher Fe tolerance will be beneficial for the performance of these Al alloys. This study screens a wide compositional range of Al-Mn-Fe-Si alloys to investigate the Fe effects using combinatorial alloy synthesis by laser directed energy deposition (DED) additive manufacturing (AM). Seven Al-Mn-Fe-Si alloys featuring different levels of Fe were deposited by DED under different substrate cooling rates. A series of heat treatments were conducted to study the particle evolution and phase transformation, followed by the small-scale tensile testing. The results indicate that the high cooling rate of AM increases the Fe tolerance of these alloys. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Additive Manufacturing, Aluminum, Phase Transformations |