About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing: Beyond on the Beam IV
|
Presentation Title |
Effect of Additive Friction Stir Deposition Tool Geometry on Material Mixing and Microstructure Gradient of Al Alloys |
Author(s) |
Mackenzie Perry, Hang Yu, Greg D. Hahn |
On-Site Speaker (Planned) |
Mackenzie Perry |
Abstract Scope |
Developing an understanding of the effect of tool geometry on material mixing and microstructure evolution during Additive Friction Stir Deposition (AFSD) is important for full implementation of the technology. In this work, we used three tools with different features on the bottom surface to print 2XXX series aluminum alloy feedstock onto 6XXX series aluminum alloy substrates. X-ray computed tomography is used to visualize the shape of the deposited material layer and the interface between dissimilar aluminum alloys. Depending on the tool (flat, two protrusions, or four protrusions), the shape of the deposited material interface is tunable from flat all the way to highly asymmetric and wavy for the same parameters. Electron backscatter diffraction is used to understand the microstructure progression. The microstructure of the deposited material was relatively uniform and fully recrystallized. The substrate material showed variable amounts of recrystallization that is location dependent.. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Aluminum, |