| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XII
|
| Presentation Title |
Joining Cast Mg AZ91 and Wrought Al 6082 through Friction Stir Welding |
| Author(s) |
Krzysztof Mroczka, Stanisław Dymek, Adam Pietras, Aleksandra Węglowska, Carter Hamilton, Mateusz Kopyściański |
| On-Site Speaker (Planned) |
Carter Hamilton |
| Abstract Scope |
Dissimilar welds of cast AZ91 with wrought aluminum 6082 were fabricated by friction stir welding (6 mm thick) with the alloys alternately placed on the advancing and retreating sides. The unique weld microstructures were characterized through light and electron microscopies (SEM-EBSD, TEM), tensile tests were performed on samples containing the entire welds and the microhardness was measured across the weld cross-sections. Supplementing the conventional tensile tests, micro tensile specimens (cross-sectional area of 0.7 x 0.7 mm) were excised by wire EDM from the specific areas of the weld to highlight differences in local properties that influence weld behavior. Preliminary results demonstrate that some regions contain a significant amount of the brittle Al12Mg17 phase. To complement the microstructural and mechanical characterization, numerical simulations of the welding process provided deeper insight into the material flow during mixing and to the temperature distributions across the weld zones. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Aluminum, Magnesium |