Dislocation loop and tangle evolution of peak damage region in tungsten irradiated by heavy ion and deuterium plasma

被引：19
作者：
Guo, Wangguo [1 ,2 ]
Wang, Shiwei [1 ,2 ]
Ge, Lin [3 ]
Fu, Engang [4 ]
Yuan, Yue [1 ,2 ]
Cheng, Long [1 ,2 ]
Lu, Guang-Hong [1 ,2 ]
机构：
[1] Beihang Univ, Sch Phys, Beijing 100191, Peoples R China
[2] Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 100191, Peoples R China
[3] Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
[4] Peking Univ, State Key Lab Nucl Phys & Technol, Sch Phys, Beijing 100871, Peoples R China
来源：
NUCLEAR FUSION | 2020年 / 60卷 / 03期
基金：
中国博士后科学基金;
关键词：
heavy ion irradiation; deuterium exposure; dislocation loop; dislocation tangle; bubble; RADIATION-DAMAGE; IN-SITU; MICROSTRUCTURE; TEMPERATURE; BEHAVIOR; ALLOYS; BEAMS; TEM;
D O I：
10.1088/1741-4326/ab6b3f
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Transmission electron microscope is widely used to investigate the defects induced by heavy ion irradiation and deuterium plasma exposure in tungsten, however, results differ greatly between in situ and near-bulk irradiation experiments. Here we adopt the back-thinned electropolishing and re-electropolishing method to study the microstructure in the peak damage region of heavy ion damaged tungsten. Transition from dislocation loops to complex dislocation tangles with increasing damage level is observed, and dislocation tangle decomposition and deuterium bubble formation under high-flux deuterium plasma exposure are also revealed. The results presented in this paper provide useful information for further investigation on irradiation defect evolution and the synergetic effect of displacement damage and deuterium behavior in W.
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页数：8
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共 37 条
  • [1] Predicting the performance of tungsten in a fusion environment: a literature review
    Abernethy, R. G.
    [J]. MATERIALS SCIENCE AND TECHNOLOGY, 2017, 33 (04) : 388 - 399
  • [2] Model development of plasma implanted hydrogenic diffusion and trapping in ion beam damaged tungsten
    Barton, J. L.
    Wang, Y. Q.
    Doerner, R. P.
    Tynan, G. R.
    [J]. NUCLEAR FUSION, 2016, 56 (10)
  • [3] Irradiation hardening induced by blistering in tungsten due to low-energy high flux hydrogen plasma exposure
    Chen, W. Q.
    Xiao, X. Z.
    Pang, B.
    Si, S. S.
    Jia, Y. Z.
    Xu, B.
    Morgan, T. W.
    Liu, W.
    Chiu, Y. L.
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2019, 522 : 11 - 18
  • [4] TEM investigation of the influence of dose rate on radiation damage and deuterium retention in tungsten
    Chrominski, W.
    Ciupinski, L.
    Bazarnik, P.
    Markelj, S.
    Schwarz-Selinger, T.
    [J]. MATERIALS CHARACTERIZATION, 2019, 154 : 1 - 6
  • [5] TEM observations of radiation damage in tungsten irradiated by 20 MeV W ions
    Ciupinski, L.
    Ogorodnikova, O. V.
    Plocinski, T.
    Andrzejczuk, M.
    Rasinski, M.
    Mayer, M.
    Kurzydlowski, K. J.
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2013, 317 : 159 - 164
  • [6] HYDROGEN BUBBLES IN METALS
    CONDON, JB
    SCHOBER, T
    [J]. JOURNAL OF NUCLEAR MATERIALS, 1993, 207 : 1 - 24
  • [7] The influence of plasma-surface interaction on the performance of tungsten at the ITER divertor vertical targets
    De Temmerman, G.
    Hirai, T.
    Pitts, R. A.
    [J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2018, 60 (04)
  • [8] Sub-surface microstructure of single and polycrystalline tungsten after high flux plasma exposure studied by TEM
    Dubinko, A.
    Terentyev, D.
    Bakaeva, A.
    Hernandez-Mayoral, M.
    De Temmerman, G.
    Buzi, L.
    Noterdaeme, J. -M.
    Unterberg, B.
    [J]. APPLIED SURFACE SCIENCE, 2017, 393 : 330 - 339
  • [9] Spatial ordering of nano-dislocation loops in ion-irradiated materials
    Dudarev, S. L.
    Arakawa, K.
    Yi, X.
    Yao, Z.
    Jenkins, M. L.
    Gilbert, M. R.
    Derlet, P. M.
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2014, 455 (1-3) : 16 - 20
  • [10] Loop and void damage during heavy ion irradiation on nanocrystalline and coarse grained tungsten: Microstructure, effect of dpa rate, temperature, and grain size
    El-Atwani, O.
    Esquivel, E.
    Efe, M.
    Aydogan, E.
    Wang, Y. Q.
    Martinez, E.
    Maloy, S. A.
    [J]. ACTA MATERIALIA, 2018, 149 : 206 - 219
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