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

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2019,（4）
• 页码范围: 67-69
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/0256-307X/36/4/046104

摘要

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.