| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
K-3: Microstructure and Mechanical Properties of Additive Friction Stir Deposited Al-Ce Alloys |
| Author(s) |
Vishal Soni, Devin Davis, Roberto Liam Menchaca, Ramit Kaushik, N. Naveen Kumar, Adam Loukus, David Weiss, Rajiv S Mishra, Vijay Vasudevan |
| On-Site Speaker (Planned) |
Roberto Liam Menchaca |
| Abstract Scope |
Al-Ce alloys are of interest for high temperature aerospace structural applications due to their ability to resist creep and maintain stability at elevated temperatures. This is attributed to thermal stable Al11Ce3 lamellae in Al-Al11Ce3 eutectic microstructure. In this study, Additive Friction Stir Deposition (AFSD) is employed to significantly refine the microstructure by breaking up the Al11Ce3 lamellae into smaller, uniformly dispersed particles. Furthermore, various elemental additions are used to exploit solid solution strengthening and precipitation strengthening, in addition to composite strengthening achieved by this eutectic mixture. The microstructural evolution and tensile behavior of both the as-cast and AFSD materials were analyzed through scanning electron microscopy (SEM), transmission electron microscopy (TEM), atom probe tomography (APT), and small-scale tensile testing. The results demonstrate a substantial enhancement in the mechanical properties at both room and elevated temperatures due to AFSD. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Additive Manufacturing, Aluminum, High-Temperature Materials |