| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Beyond the Beam III
|
| Presentation Title |
Mechanical Properties and Characterization of Solid-state Additive Manufacturing of AA6061 and AA5083 |
| Author(s) |
Sadie Beck, J. Brian Jordon, Paul G. Allison, C. Jacob Williamson |
| On-Site Speaker (Planned) |
Sadie Beck |
| Abstract Scope |
In this study, the process-structure-property performance relationship is observed and quantified for two aluminum alloys as processed through a novel solid-state additive manufacturing process, Additive Friction Stir Deposition (AFSD). This research sought to, for the first time, elucidate the effect of thermomechanical processing on the deformation mechanisms associated with AFS-D for precipitate-hardened (6xxx series) and strain-hardened (5xxx series) aluminum alloys. AFSD material presents with a refined grain morphology. The thermo-mechanical processing of AFSD results in an exchange of strengthening mechanisms – stripping the wrought material of strength gained from tempering and strain hardening and replaces it with grain boundary strengthening. While a reduced tensile strength was observed for AA6061, AA5083 performed similarly with wrought. A post deposition heat treatment was applied to AFSD AA6061 for a full tensile strength recovery. A multistage fatigue model was calibrated for AFSD AA5083 using experimental results. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |