About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Special Topics in Nuclear Materials: Reproducibility and Uncertainty; Hydrogen Effects; Space and Microreactor Systems
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| Presentation Title |
Assessment of Hydrogen Diffusion in Vanadium for FLiBe Blanket Designs |
| Author(s) |
Mary Alice Cusentino, Anne Davis, Sophie Blondel, Aidan Thompson, Chris Smyth, Rob Kolasinski |
| On-Site Speaker (Planned) |
Mary Alice Cusentino |
| Abstract Scope |
One of the key material science challenges in developing fusion energy is the design of structural and functional materials for the tritium breeding blanket. One of the leading blanket designs incorporates a lithium fluoride/beryllium fluoride (FLiBe) molten salt breeding blanket with a vanadium as the structural material. While V-4Cr-4Ti has favorable properties like low activation, high thermal stress factor, and good compatibility with liquid lithium, it has a high tritium solubility which will result in tritium permeation into the structural alloy requiring a tritium permeation barrier (TPB). In this work, we will report on the development of a V-H machine learned interatomic potential (ML-IAP) to better understand the effect of radiation damage on tritium permeation. Complimentary hydrogen permeation and ion beam experiments to assess these materials will also be reported. SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525 |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Nuclear Materials |