2023 Fall Meeting

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 502-1 Nuclear Materials, Degradation, Radiation Effects, and Related Technology

[2A15-21] Reactor Pressure Vessel Steels

Thu. Sep 7, 2023 4:10 PM - 6:00 PM Room A (IB Bildg.1F IB013)

Chair:Eiichi Wakai(JAEA)

4:40 PM - 4:55 PM

[2A17] Characterization of Radiation Defects in Low-Cu A533B Steel Irradiated by 5 MeV Electrons Using Three Analytical Techniques: APT, TEM and STEM/EDS

*Katsuhiko Fujii1, Hitoshi Seto2, Koji Fukuya1, Ryuta Kasada3 (1. INSS, 2. NFD, 3. Tohoku Univ.)

Keywords:Mn/Ni/Si cluster, Dislocation loop, Radiation embrittlement, Reactor pressure vessel

電子線照射した低Cu含有量のA533B鋼をAPTとTEM、STEM/EDSで調べた結果、STEM/EDS分析によりAPT測定と同等にMn/Ni/Siクラスタが検出できることが確認され、ほぼすべての転位ループの位置にMn/Ni/Siクラスタが存在することが確認された。