中国物理B ›› 2021, Vol. 30 ›› Issue (3): 36102-.doi: 10.1088/1674-1056/abc2b4

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  • 收稿日期:2020-09-21 修回日期:2020-10-19 接受日期:2020-10-20 出版日期:2021-02-22 发布日期:2021-02-22

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

Bingsheng Li(李炳生)1,†, Zhen Yang(杨振)2,‡, Shuai Xu(徐帅)1, Kongfang Wei (魏孔芳)3, Zhiguang Wang(王志光)3, Tielong Shen(申铁龙)3, Tongmin Zhang(张桐民)3, and Qing Liao(廖庆)1   

  1. 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
  • Received:2020-09-21 Revised:2020-10-19 Accepted:2020-10-20 Online:2021-02-22 Published:2021-02-22
  • Contact: †Corresponding author. E-mail: libingshengmvp@163.com ‡Corresponding author. E-mail: yangzh97@mail.sysu.edu.cn
  • Supported by:
    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), and the Doctor Research Foundation of Southwest University of Science and Technology (Grant No. 18zx714101).

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Abstract: 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, F82H, 15Cr-ODS, SIMP and T91, are investigated in this study. We take 6.4 MeV Fe3+ ions and energy-degraded 1.0 MeV 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 °C and 450 °C, 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 °C irradiation while heterogeneously distributed bubbles at 450 °C irradiation.

Key words: martensitic steels, Fe and He co-irradiation, He bubbles, transmission electron microscopy

中图分类号:  (Physical radiation effects, radiation damage)

  • 61.80.-x
61.80.Jh (Ion radiation effects) 68.37.Lp (Transmission electron microscopy (TEM)) 78.40.Kc (Metals, semimetals, and alloys)