[2C01-07] Irradiation Effect 1

[2C05] Effects of solute elements in iron-based alloys for hardness change along helium irradiation and post-irradiation annealing

*PHONGSAKORN PRAK TOM^1,2, KENTA MURAKAMI¹, VU NHUT LUU¹, LIANG CHEN¹ (1. Nagaoka University of Technology, 2. Malaysian Nuclear Agency)

Keywords:solute elements, post-irradiation annealing, irradiation hardening

To investigate the effect of solute Mn, Ni, and Si atoms on vacancy behavior in bcc-iron, hardness change was evaluated by nanoindentation after Helium ion irradiation and post-irradiation annealing. Irradiation-induced hardening has been confirmed in all specimens at room temperature and up to 200⁰C for post-annealing, then observed the recovery.