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@ARTICLE{Fang:858468,
      author       = {Fang, Xufei and Kreter, Arkadi and Rasinski, Marcin and
                      Kirchlechner, Christoph and Brinckmann, Steffen and
                      Linsmeier, Christian and Dehm, Gerhard},
      title        = {{H}ydrogen embrittlement of tungsten induced by deuterium
                      plasma: {I}nsights from nanoindentation tests},
      journal      = {Journal of materials research},
      volume       = {33},
      number       = {20},
      issn         = {2044-5326},
      address      = {Cambridge [u.a.]},
      publisher    = {Cambridge Univ. Press},
      reportid     = {FZJ-2018-07340},
      pages        = {3530 - 3536},
      year         = {2018},
      abstract     = {Hydrogen exposure has been found to result in metal
                      embrittlement. In this work, we use nanoindentation to study
                      the mechanical properties of polycrystalline tungsten
                      subjected to deuterium plasma exposure. For the purpose of
                      comparison, nanoindentation tests on exposed and unexposed
                      reference tungsten were carried out. The results exhibit a
                      decrease in the pop-in load and an increase in hardness on
                      the exposed tungsten sample after deuterium exposure. No
                      significant influence of grain orientation on the pop-in
                      load was observed. After a desorption time of td ≥ 168 h,
                      both the pop-in load and hardness exhibit a recovering trend
                      toward the reference state without deuterium exposure. The
                      decrease of pop-in load is explained using the defactant
                      theory, which suggests that the presence of deuterium
                      facilitates the dislocation nucleation. The increase of
                      hardness is discussed based on two possible mechanisms of
                      the defactant theory and hydrogen pinning of dislocations.},
      cin          = {IEK-4},
      ddc          = {670},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000452651700018},
      doi          = {10.1557/jmr.2018.305},
      url          = {https://juser.fz-juelich.de/record/858468},
}