About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Lightweight Alloy Matrix Composites
|
| Presentation Title |
Microstructural and Mechanical Characterization of an Inoculated Aluminum 7075 Alloy Processed with Wire Arc Additive Manufacturing |
| Author(s) |
Jessica Buckner, Hannah Sims, Levi Van Bastian, Landon Schnebly, Dominic Piccone |
| On-Site Speaker (Planned) |
Jessica Buckner |
| Abstract Scope |
High strength aluminum alloys, including those in the 2XXX, 6XXX, and 7XXX series are used widely in aerospace for their lightweight properties but have limited adoption in additive manufacturing due to susceptibility to solidification cracking, which can be exacerbated by columnar grains formed during wire arc additive manufacturing (WAAM). Grain refinement by addition of inoculants, which act as heterogeneous nucleation sites, is one solution to mitigating solidification cracking. This presentation will document the microstructural and phase evolution with build and heat treatment tied to the room and elevated temperature tensile behavior of inoculated aluminum alloy 7075 wire feedstock printed with WAAM. Understanding the process-structure-property relationships for inoculated aluminum alloys built with WAAM can enable production of near net shape, high strength aluminum alloy parts more rapidly than with traditional manufacturing methods.
SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Characterization |