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@ARTICLE{Terentyev:837024,
      author       = {Terentyev, D. and Riesch, J. and Lebediev, S. and Bakaeva,
                      A. and Coenen, J. W.},
      title        = {{M}echanical properties of as-fabricated and 2300 °{C}
                      annealed tungsten wire tested up to 600 °{C}},
      journal      = {International journal of refractory metals $\&$ hard
                      materials},
      volume       = {66},
      issn         = {0263-4368},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2017-06040},
      pages        = {127 - 134},
      year         = {2017},
      abstract     = {Recent efforts dedicated to the mitigation of tungsten
                      brittleness have demonstrated that tungsten fiber-reinforced
                      composites acquire pseudo ductility even at room
                      temperature. Crack extension and fracture process is
                      basically defined by the strength of tungsten fibers. Here,
                      we move forward and report the results of mechanical and
                      microstructural investigation of different grades of W wire
                      with a diameter of 150 μm at elevated temperature up to 600
                      °C. The results demonstrated that potassium doping to the
                      wire in the as-fabricated state does not principally change
                      the mechanical response, and the fracture occurs by grain
                      elongation and delamination. Both fracture stress and
                      fracture strain decrease with increasing test temperature.
                      Contrary to the as-fabricated wire, the potassium-doped wire
                      annealed at 2300 °C exhibits much lower fracture stress.
                      The fracture mechanism also differs, namely: cleavage below
                      300 °C and ductile necking above. The change in the
                      fracture mechanism is accompanied with a significant
                      increase of the elongation to fracture being ~ $5\%$ around
                      300 °C.},
      cin          = {IEK-4},
      ddc          = {670},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000418222000019},
      doi          = {10.1016/j.ijrmhm.2017.03.011},
      url          = {https://juser.fz-juelich.de/record/837024},
}