| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XIII
|
| Presentation Title |
Evaluation of Additive Friction Stir Deposited A206 |
| Author(s) |
Benjamin Pollard, Eric Andrew Lass, Benjamin Wing |
| On-Site Speaker (Planned) |
Benjamin Pollard |
| Abstract Scope |
Additive Friction Stir Deposition (AFSD) is a novel solid-state metal additive manufacturing method that offers distinct advantages over fusion-based methods for producing microstructurally homogenous and fully dense parts. AFSD is also a potential substitute for castings and forgings where replacement components typically have long lead times. This is especially applicable for Aluminum A206, a cast Al-Cu alloy that has found success within the adjacent area of friction stir processing (FSP). AFSD of A206 was successful, but extensive cracks as long as 6 mm were observed across the deposit after solution heat treatment. Element segregation was not observed near crack regions, but the addition of a stress relief heat treatment prior to solution heat treatment reduces cracking significantly. Optical microscopy and electron-backscatter diffraction (EBSD) are utilized to assess microstructural homogeneity and defect presence before and after heat treatment. The possible influence of residual stress on observed crack behavior is also considered. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Joining |