About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Solid-State Processing and Manufacturing for Nuclear Applications: Integrating Insights and Innovations
|
| Presentation Title |
Iron Aluminide Formation via Cold Spray and Spot Friction Processing for Tritium Permeation Barrier Applications |
| Author(s) |
Syed Rizvi, Md Jasim Udin, Chris McRobie, Tyler Rihm, Bharat Gwalani, Elizabeth Kautz |
| On-Site Speaker (Planned) |
Syed Rizvi |
| Abstract Scope |
Tritium permeation barrier (TPB) coatings are critical for the safe operation of nuclear systems, limiting hydrogen isotope transport across structural materials. Iron aluminides are a widely studied TPB material due to their chemical stability and low hydrogen permeability. However, conventional processing methods e.g pack cementation and high-temperature treatments, yield porous coatings with undesirable phases and are not well-suited for scalable manufacturing. In this work, we investigate a hybrid solid-state approach to manufacturing iron aluminides for TPB applications. Al particles were cold-sprayed onto steel substrates and subsequently processed using spot friction processing to evaluate the hybrid cold spray-friction stir processing approach to intermetallic phase formation. The microstructural evolution and phase formation for varying rotational speeds and dwell times were analyzed via XRD and electron microscopy. Results highlight iron aluminides can be formed via solid-state processing, which may be a promising, scalable approach for nuclear applications |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Iron and Steel, Nuclear Materials |