About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Characterization and Processing
|
Presentation Title |
Effects of the Friction Stir Welding Sliding and Sticking Mechanisms on the Microhardness, Texture, and Element Concentration |
Author(s) |
Nicholas Sabry, Joshua Stroh, Dimitry Sediako |
On-Site Speaker (Planned) |
Nicholas Sabry |
Abstract Scope |
Friction-stir-welding (FSW) has gained importance as an effective way to join dissimilar materials due to its solid-state nature. However, the effects of multiple parallel welds in the proximity of each other are poorly understood. In the current study, electron backscatter diffraction, microhardness, thermal conductivity, and differential scanning calorimetry were used to characterize the microstructure, hardness, and precipitate structure as a function of position in three parallel FSW between two aluminum alloys 6061 and A365 joined in a lap weld configuration. The results reveal the expected dynamically recrystallized, thermo-mechanical affected, and heat-affected zones with varying microhardness between the three welds corresponding to the maximum temperature reached for each weld. If the effects of minimum allowable distance between proximity solid-state welds are understood accurately, solid-state welds can be produced closer to each other with understood consequences, further optimizing the output material properties of the operation for a more comprehensive array of applications. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Joining, Mechanical Properties |