About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Forming and Joining of Advanced Sheet Metal Materials
|
| Presentation Title |
Influence of Low-Temperature Thermal Cycling in Dissimilar Friction Stir Welding of Aluminium to Steel for Arctic Applications |
| Author(s) |
Amlan Kar, Liam Stack, Todd Curtis, Bharat Jasthi, Wade Lein, Zackery McClelland, Grant A. Crawford |
| On-Site Speaker (Planned) |
Amlan Kar |
| Abstract Scope |
Dissimilar friction stir welding (FSW) of aluminum to steel is a promising solid-state joining used in structural applications across defense and industrial sectors. The increased emphasis on fuel economy and improved vehicle mobility in Arctic regions has created a need for lightweight structures and solid-state joining techniques. This investigation aims to assess the influence of FSW joint configurations on microstructure evolution and mechanical performance of aluminium-steel welds, both before and after extreme low-temperature thermal cycling. The microstructure of the welds was characterized using optical microscopy, scanning electron microscopy and X-ray diffraction. The mechanical performance of the welds was assessed through microhardness mapping and shear tensile testing. Post-fracture analysis via fractography was conducted to identify the failure modes and critical regions within the welds. The welds demonstrated promising results under extreme thermal conditions, providing valuable insights for their applications in Arctic environments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Aluminum, |