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Oral presentationV. Nuclear Fuel Cycle and Nuclear Materials : 502-1 Nuclear Materials, Degradation, Radiation Effects, and Related Technology

[2G13-18]Reactor Pressure Vessel Steel 1

Thu. Sep 11, 2025 3:55 PM - 5:35 PM JST
Thu. Sep 11, 2025 6:55 AM - 8:35 AM UTC
Room G(Kitakyushu International Conference Center3F Meeting Room 33)
Chair:Kenta Murakami(UTokyo)
3:55 PM - 4:10 PM JST(6:55 AM - 7:10 AM UTC)

[2G13]Evaluation of Irradiation Embrittlement of a Harvested Reactor Pressure Vessel Materialfrom a Domestic PWR Plant
(4) Investigation of Vacancy-type Defect Formation

*Katsuhiko Fujii1, Yuuki Maeda1, Koji Fukuya1 (1. INSS)
Comment()
4:10 PM - 4:25 PM JST(7:10 AM - 7:25 AM UTC)

[2G14]Modeling of the Critical Resolved Shear Stress Required for a Screw Dislocation to Overcome Dislocation Loops

*Yosuke Tsunemoto1, Tomohisa Kumagai1, Kazuma Suzuki1, Akiyoshi Nomoto1, Atsuo Hirano2, Akiyuki Takahashi2 (1. CRIEPI, 2. TUS)
Comment()
4:25 PM - 4:40 PM JST(7:25 AM - 7:40 AM UTC)

[2G15]Microstructure of RPV mock up materials of Hamaoka nuclear plant 1

*Hideo WATANABE Watanabe1, Kenta Yoshida1, Minako Yoshikawa2, Hideki Yuya2 (1. Tohoku Univ.,, 2. Chubu Electronic Power)
Comment()
4:40 PM - 4:55 PM JST(7:40 AM - 7:55 AM UTC)

[2G16]Fracture toughness test using mini-CT specimen on decommissioned Hamaoka unit-1.(1) Assessment and discussion

*hideki yuya1, Shun Miyaoka1, Tomoyuki Fujii2, Minako Yoshikawa1 (1. chubu electric power co., ltd., 2. Shizuoka university)
Comment()
4:55 PM - 5:10 PM JST(7:55 AM - 8:10 AM UTC)

[2G17]Fracture toughness evaluation of the welded heat-affected zone in reactor pressure vessel steel irradiated by JRR-3

*Yoosung Ha1, Kuniki Hata1, Masaya Watanabe1, Yuji Okada1, Hiroki Ushijima1, Kento Mitsui1, Takumi Fuyushima1 (1. JAEA)
Comment()
5:10 PM - 5:25 PM JST(8:10 AM - 8:25 AM UTC)

[2G18]Prediction model for Charpy absorbed energy of irradiated reactor pressure vessel steels using machine learning method

*Yoshinori Hashimoto1, Akiyoshi Nomoto1, Mark Kirk1 (1. CRIEPI)
Comment()
5:25 PM - 5:35 PM JST(8:25 AM - 8:35 AM UTC)

Time reserved for Chair

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