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@ARTICLE{Fischer:864097,
      author       = {Fischer, T. and Kuhn, B.},
      title        = {{N}ew {I}nsights {I}nto the {T}hreshold {B}ehavior of a
                      $9–12\%$ {C}r {F}erritic/{M}artensitic {S}teel –
                      {S}eparation and {Q}uantification of {C}rack {C}losure
                      {M}echanisms},
      journal      = {International journal of fatigue},
      volume       = {127},
      issn         = {0142-1123},
      address      = {Oxford},
      publisher    = {Elsevier},
      reportid     = {FZJ-2019-04000},
      pages        = {479 - 487},
      year         = {2019},
      abstract     = {The energy transition and the associated increase in the
                      share of regenerative energies require flexible power plant
                      operation to compensate fluctuations in residual load. As a
                      result of the decreasing dwell times at constant high
                      temperatures, the significance of fatigue damage gains in
                      importance. At present, existing design codes are of limited
                      validity for this new loading scenario. This necessitates
                      the development of adapted design codes based on damage
                      tolerance concepts. For this reason the frequency dependent
                      threshold behavior of the ferritic/martensitic steel
                      X20CrMoV12-1 was investigated in a temperature range from
                      300 °C to 600 °C. In order to exploit the maximum
                      lifetime of a component without compromising safety,
                      detailed knowledge on active crack closing mechanisms is of
                      elementary importance. Therefore, a general experimental
                      approach for separation and quantification of crack closure
                      mechanisms and their impact on crack propagation threshold
                      values was developed. By this methodology, both the
                      influence of temperature and corrosion on the threshold can
                      be separated and quantified despite superposition of several
                      mechanisms. The only application criterion of this procedure
                      is SR ≪ 1, because roughness induced crack closure has
                      to be negligible small. If roughness induced crack closure
                      cannot be neglected, the methodology developed in this study
                      has to be modified by models which quantify the influence of
                      roughness induced crack closure.},
      cin          = {IEK-2},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IEK-2-20101013},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000482492600043},
      doi          = {10.1016/j.ijfatigue.2019.06.030},
      url          = {https://juser.fz-juelich.de/record/864097},
}