| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior of Nuclear Reactor Materials and Components IV
|
| Presentation Title |
Mechanical behavior and microstructure of stainless steel/titanium dissimilar metal welds utilizing vanadium interlayers |
| Author(s) |
Erin Barrick, Brett Roper, Jack Herrmann, Austin Pisani, Andrew Kustas, Don Susan, Pat Carrion, Amanda Jones |
| On-Site Speaker (Planned) |
Erin Barrick |
| Abstract Scope |
Vanadium and its alloys are promising structural materials for future fusion reactors. Vanadium’s compatibility with other structural alloys also makes it a suitable candidate for facilitating dissimilar metal welding. In this work, vanadium has been utilized as an interlayer alloy for laser welding between stainless steel and titanium alloys; vanadium was chosen to minimize intermetallic phase formation. Interlayers were fabricated with two technologies, sheet inserts and laser beam directed energy deposition, an additive manufacturing process. Different laser welding processes were used to evaluate microstructure and mechanical properties. Mechanical behavior of was evaluated with microhardness mapping and tensile testing. The welded joints exhibited moderate strength and ductility, aligned well with the strength of the vanadium interlayer. Furthermore, most of the laser welding conditions produced defect-free welds, demonstrating the viability of vanadium as a candidate interlayer alloy.
SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525 |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Solidification, |