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@ARTICLE{Kalfhaus:888311,
      author       = {Kalfhaus, T. and Schaar, H. and Thaler, F. and Ruttert, B.
                      and Sebold, D. and Frenzel, J. and Steinbach, I. and
                      Theisen, W. and Guillon, O. and Clyne, T. W. and Vassen, R.},
      title        = {{P}ath to single-crystalline repair and manufacture of
                      {N}i-based superalloy using directional annealing},
      journal      = {Surface and coatings technology},
      volume       = {405},
      issn         = {0257-8972},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2020-04831},
      pages        = {126494 -},
      year         = {2021},
      abstract     = {Advanced methods for the repair of single-crystalline (SX)
                      Ni-based superalloys are of special interest for the gas
                      turbine industry. Polycrystalline repair approaches show
                      promising results, while the repair of SX materials is still
                      challenging. Directional annealing experiments resulted in
                      large columnar grains by imposing thermal gradients at the
                      abnormal grain growth temperature of a specific Ni-based
                      superalloy. A numerical model of the Bridgman process is
                      applied to provide an insight into the temperature evolution
                      during zone annealing of the Vacuum-Plasma-Spray (VPS)
                      repair coatings with the aim of promoting grain growth from
                      the SX substrate. The results presented here suggest that
                      this is a promising approach to repair or manufacture SX
                      turbine blades.},
      cin          = {IEK-1 / JARA-ENERGY},
      ddc          = {670},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113) / 1241 - Gas turbines (POF4-124)},
      pid          = {G:(DE-HGF)POF3-113 / G:(DE-HGF)POF4-1241},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000604583200002},
      doi          = {10.1016/j.surfcoat.2020.126494},
      url          = {https://juser.fz-juelich.de/record/888311},
}