About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Transmutation Effects in Fusion Reactor Materials: Critical Challenges & Path Forward
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Presentation Title |
Studies on Transmutation Effects in Reduced Activation Ferritic/Martensitic Steels in Japan |
Author(s) |
Hiroyasu Tanigawa, Yoshiyuki Watanabe, Masami Ando, Dai Hamaguchi, Naoyuki Hashimoto, Shuhei Nogami, Takashi Nozawa |
On-Site Speaker (Planned) |
Hiroyasu Tanigawa |
Abstract Scope |
The effects of helium and hydrogen on swelling and embrittlement, which affect the lifetime of fusion reactor components under DT neutron irradiation environments, have been studied as a part of research on the transmutation effects of reduced activation ferritic steels.
Various ion irradiation experiments are the major experimental methods in Japan for studying transmutation effects. Using a focused ion beam (FIB) fabrication system with a micro-sampling system enables detailed microstructural analysis of ion irradiated ferromagnetic RAFM steels. In addition, micro-tensile methods utilizing the FIB sampling system have also made it possible to evaluate the He effect on the tensile properties in a single lath-block microstructure.
In this presentation, the results of these experimental studies in Japan will be reviewed together with the results of theoretical simulation studies that attempted to relate the experimental results to the prediction of phenomena under DEMO conditions. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Characterization, Modeling and Simulation |