[2M09-11] Nuclear Fuel materials 2

[2M11] Surface orientation dependence of irradiation-induced hardening in Zr-Nb alloys subjected to 3-MeV Zr²⁺ irradiation

*Huilong Yang¹, Sho Kano¹, John McGrady¹, Takayoshi Matsukawa², Dongyue Chen¹, Kenta Murakami³, Hiroaki Abe¹ (1. The University of Tokyo, 2. Tohoku University, 3. Nagaoka University of Technology)

Keywords:Irradiation induced hardening, Crystal orientation, Zr-Nb alloys

The techniques of ion-irradiation, nano-indentation, and electron backscatter diffraction are jointly utilized in this study, in order to investigate the orientation dependence of irradiation-induced hardening in Zr-Nb alloys. Results show that the hardness gradually decreased from (0001) corner to (10-10) and (11-20) corners, and the lowest irradiation-induced hardening was observed at [0001] orientation.