| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
A-83: Additive Friction Stir-deposition of Copper |
| Author(s) |
Jonathan L. Priedeman, Brandon J. Phillips, Billy Chad Hornbuckle, Kristopher A Darling, Paul G. Allison, Gregory B. Thompson |
| On-Site Speaker (Planned) |
Jonathan L. Priedeman |
| Abstract Scope |
Additive friction stir-deposition (AFS-D) is a solid-state, near-net shaping additive manufacturing method process capable of processing a wide variety of metallic systems, including metal-based composites. In this work, AFS-D of copper is explored. A four-pass deposition yielded a fully dense, 3.8 mm thick deposit that was completely bonded to a copper substrate. The high-temperature nature of the processing produced a surface oxide with no further oxidation observed within the interior of the deposit. The influence of AFS-D on the copper’s microstructure is examined, mainly via comparison of feedstock and as-deposited states. The highly textured microstructure of the feedstock was lost in favor of an equiaxed, semi-refined grain structure in the deposit. The mechanical properties of the substrate, interfacial bonding region, and the deposit are explored via micro-hardness mapping. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |