About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Transmutation Effects in Fusion Reactor Materials: Critical Challenges & Path Forward
|
Presentation Title |
The Effect of Chemical Element Inventory Evolution on Recoil Production and Its Effect on Defect Cluster Evolution in Tungsten |
Author(s) |
Jaime Marian, Mark R Gilbert |
On-Site Speaker (Planned) |
Jaime Marian |
Abstract Scope |
Calculations of irradiation damage in materials up to reactor-relevant doses presents several challenges, which often leads to restrictive assumptions in the formulation and construction of the models. One such challenge is accounting for changes in chemical inventory and isotopic buildup due to transmutation as the neutron dose increases with time. Here we present results of full chemical inventory calculations and their coupling to the stochastic cluster dynamics technique to carry out calculation of damage accumulation in a model system representing fusion first-wall materials. Our model considers both changes in the damage source function as a function of dose as well as in the number and type of chemical species whose kinetic evolution is tracked with dose. The results can serve to predict the impact of transmutation species on the overall kinetic evolution of tungsten and iron-based alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Nuclear Materials, Mechanical Properties |