[F23-26] 照射挙動

[F26] Si and Ni effects on hardening and microstructure change of Ni ion irradiated 316 stainless steel model alloys

^〇Dongyue Chen¹, Kenta Murakami¹, Kenji Dohi², Kenji Nishida², Naoki Soneda², Naoto Sekimura¹ (1.The University of Tokyo, Department of Nuclear Engineering and Management, 7-3-1 Hongo Bunkyo-ku,Tokyo 113-8656, Japan, 2.Central Research Institute of Electric Power Industry, 2-11-1 Iwado-kita, Komae, Tokyo 201-8511, Japan)

Keywords:stainless steel, irradiation hardening, composition effect

316 stainless steel model alloys with different Si and Ni content are irradiated by 3MeV Ni²⁺ at 288°C, to achieve ~1.2dpa at peak damage. Irradiation-induced hardening is observed by nano-indentation. Microstructure change of irradiated samples will be characterized and compared with hardness results, and composition effects will be analyzed.