| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XIII
|
| Presentation Title |
Improving Build Direction Heat Treated Tensile Properties of Additive Friction Stir Deposition AA7050 |
| Author(s) |
Isaac Liu, Jacob Hoarston, Paul Allison, Brian Jordon |
| On-Site Speaker (Planned) |
Isaac Liu |
| Abstract Scope |
Additive friction stir deposition (AFSD) is a solid-state process where solid feedstock is fed through a rotating, non-consumable tool and bonded to substrate and subsequent layers via thermomechanical processing. Solid-state manufacturing of aerospace aluminum alloys such as AA7050 is of particular interest, due to the tendency of high strength aluminum alloys to undergo hot cracking in fusion-based additive processes. However, heat treatment is necessary to recover forging-like tensile properties post-deposition, with build direction mechanical properties after post-deposition heat treatment exhibiting limited ductility. While previous research has primarily focused on restoring forging-like properties in the longitudinal direction, this study investigates the effects of different heat treatments on build direction ductility and strength. Various solutionizing temperatures and times, along with different artificial and natural aging time scales, are examined to optimize the mechanical properties of AA7050 in the build direction. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Process Technology |