,Effects of Helium Implantation and Subsequent Electron Irradiation on Microstructures of Fe-11 wt.％

• 作 者: Bing-Sheng Li Zhi-Guang Wang Tie-Long Shen Kong-Fang Wei Yan-Bin Sheng Tamakai Shibayama Xi-Rui Lu An-Li Xiong
• 机 构: State Key Laboratory for Environment-Friendly Energy Materials, Southwest University of Science and
• 出 处: 中国物理快报（英文版）
• 发表日期: 2019年4期

Helium effects on dislocation and cavity formation of Fe-11 wt.％ Cr model alloy are investigated.Single-beam (electron) and dual-beam (He+ /e-) irradiations are performed at 350℃ and 400℃ using an ultra-high voltage electron microscope combined with ion accelerators.In-situ observation shows that the growth rate of dislocation loops is reduced in the helium pre-injected specimen.The mean size of cavities decreased in the helium preinjected specimen.The possible mechanisms are discussed.