Comparison of helium bubble formation in F82H, ODS, SIMP and T91 steels irradiated by Fe and He ions simultaneously  

作　　者：Bingsheng Li Zhen Yang Shuai Xu Kongfang Wei Zhiguang Wang Tielong Shen Tongmin Zhang Qing Liao 李炳生;杨振;徐帅;魏孔芳;王志光;申铁龙;张桐民;廖庆(State Key Laboratory for Environment-Friendly Energy Materials,Southwest University of Science and Technology,Mianyang 621010,China;Sino-French Institute of Nuclear Engineering and Technology,Sun Yat-sen University,Zhuhai 519082,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China)

机构地区：[1]State Key Laboratory for Environment-Friendly Energy Materials,Southwest University of Science and Technology,Mianyang 621010,China [2]Sino-French Institute of Nuclear Engineering and Technology,Sun Yat-sen University,Zhuhai 519082,China [3]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China

出　　处：《Chinese Physics B》2021年第3期386-393,共8页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.U1832133 and 12075194);the Sichuan Science and Technology Program,China(Grant No.2020ZYD055);the Doctor Research Foundation of Southwest University of Science and Technology(Grant No.18zx714101).

摘　　要：Ferritic-martensitic steels and ODS steels are attractive candidates for structural materials in advanced nuclear-power systems due to their good swelling resistance. Four kinds of steels, F82 H, 15 Cr-ODS, SIMP and T91, are investigated in this study. We take 6.4 Me V Fe3+ ions and energy-degraded 1.0 Me V He+ ions in the irradiation of these materials to 5 dpa and 60 appm He/dpa, 200 appm He/dpa and 600 appm He/dpa at 300℃ and 450℃, respectively. The bubble formation and distribution are investigated by transmission electron microscopy(TEM). Formation and distribution of the bubbles in the four investigated steels are compared. The influence of irradiation temperature and helium injection ratio on bubble formation is discussed. It is found that there appears to be homogenously distributed bubbles at 300℃ irradiation while heterogeneously distributed bubbles at 450℃ irradiation.

关 键 词：martensitic steels Fe and He co-irradiation He bubbles transmission electron microscopy 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TM623.8[金属学及工艺—金属材料]