[G] Nuclear Materials(2)

[217] In-situ WB-STEM Observation of Dislocation Loops behavior in Reactor Pressure Vessel Steels during Post-Irradiation Annealing

*Du Yufeng¹, Yoshida Kenta¹, Shimada Yusuke¹, Toyama Takeshi¹, Inoue Koji¹, Arakawa Kazuto², Suzudo Tomoaki³, Milan J. Konstantinovic⁴, Gerard Robert⁵, Nagai Yasuyoshi¹ (1. IMR, Tohoku Univ.、2. Shimane Univ.、3. JAEA、4. SCK-CEN、5. Tractabel ENGIE)

Keywords:Dislocation loops、WB-STEM、In-situ annealing、Neutron irradiation、RPV steels

The Burgers Vector of dislocation loops was characterized before and after annealing in the neutron irradiated RPV steel. The evolution of dislocation loops was in-situ observed during annealing.