| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XII
|
| Presentation Title |
Material Flow Visualization and Comparison in Different Aluminum Alloys during Friction Stir Welding using High-Speed X-ray Imaging |
| Author(s) |
Hemant Agiwal, Daniel Franke, Mohammad Ali Ansari, Patrick Faue, Samuel J Clark, Kamel Fezzaa, Michael Zinn, Shiva Rudraraju, Frank E. Pfefferkorn |
| On-Site Speaker (Planned) |
Frank E. Pfefferkorn |
| Abstract Scope |
The intricacies of material flow dynamics during friction stir welding for different aluminum alloys have been a long hypothesized phenomenon in the literature, with studies predicting the material flow using post-factum microstructural characterization and numerical simulations. This study employs high-speed X-ray imaging performed at the Advanced Photon Source facility in Argonne National Laboratory to capture the process dynamics during friction stir welding. A high-intensity X-ray beam was used to image a 2 mm x 2 mm area at 20,000 frames per second. The friction stir tool made of H13 tool steel with threads and 3-flats on the probe was used to compare material flow in aluminum 6061-T6 and aluminum 7075 workpieces. The density changes captured by the high-intensity X-ray beam show the formation and filling of cavities in the wake of the tool. The difference in material flow and visco-plastic shearing is also observed in the two alloys. |
| Proceedings Inclusion? |
Planned: |