190keV proton irradiation was used to simulate high dose neutron irradiation in modern low cooper A508-3 steels. The irradiation was performed at room temperature and up to 0.27dpa. A displacement damge peak would be located at around 0.8um from the surface. Irradiated damage was formed up to about 1.0μm according the SRIM code calculation. The mechanical property evoluation was characterized using nanoindention according to both the classical Oliver-Pharr method and Energy method. An increase of irradiation-induced nanohardness with dose was observed but without saturation up to the highest dose in this study. An irradiation-induced hardening trend was obtained and compared with other particle irradiation hardening data in literature, along with the FIS equation. The irradiation temperature effect was also discussed.
Qiangmao Wan Guogang Shu Rongshan Wang Hui Ding Xiao Peng Chunxu Pan Yang Li Qi Zhang Chuansheng Liu
Wuhan University, Luojia Hill, Wuhan 430072, China Suzhou Nuclear Power Research Institute Co.,Ltd, Wuhan University, Luojia Hill, Wuhan 430072, China China Nuclear Power Engineering Co.,Ltd., Shenzhe Suzhou Nuclear Power Research Institute Co.,Ltd, Suzhou 215004, China Wuhan University, Luojia Hill, Wuhan 430072, China Wuhan University, Luojia Hill, Wuhan 430072, China Suzhou Nuclear Power Research Institute Co.,Ltd,