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@ARTICLE{Terberger:255546,
      author       = {Terberger, Philipp and Sebold, Doris and Webler, Ralf and
                      Ziener, Marco and Neumeier, Steffen and Klein, Leonhard and
                      Virtanen, Sannakaisa and Göken, Mathias and Vassen, Robert},
      title        = {{I}sothermal aging of a γ′-strengthened
                      {C}o–{A}l–{W} alloy coated with vacuum plasma-sprayed
                      {MC}r{A}l{Y} bond coats},
      journal      = {Surface and coatings technology},
      volume       = {276},
      issn         = {0257-8972},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2015-05706},
      pages        = {360 - 367},
      year         = {2015},
      abstract     = {Cobalt-based superalloys with a γ/γ′ microstructure
                      were discovered in 2006 and are currently being investigated
                      as an alternative to nickel-based superalloys for
                      high-temperature, high-load applications in gas turbine
                      blades. They promise a better castability combined with a
                      similar creep strength. Superalloy turbine blades are
                      commonly coated with oxidation resistant bond coats. For
                      this reason their compatibility needs to be studied.
                      Co–9Al–9W specimens with a γ/γ′ microstructure were
                      coated with either a nickel-based or cobalt-based MCrAlY
                      bond coat using vacuum plasma spraying. After aging at 900
                      °C in air for up to 500 h no decomposition of the γ′
                      phase was found in the bulk superalloy. The interdiffusion
                      zone shows several different W-rich topologically
                      close-packed phases arising from the dissolution of the
                      γ′ phase in this region. The W-rich phases are identified
                      to be μ phase for both bond coats and R phase for the
                      nickel-based bond coat only. Their total volume is higher
                      for the nickel-based bond coat. Therefore the cobalt-based
                      bond coat is better suited for the Co-based superalloy
                      substrate. Room temperature hardness and Young's modulus
                      were measured using nanoindentation in the initial state and
                      after heat treatment. A significantly higher Young's modulus
                      was found for the cobalt-based bond coat.},
      cin          = {IEK-1},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113) / HITEC - Helmholtz Interdisciplinary Doctoral
                      Training in Energy and Climate Research (HITEC)
                      (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-113 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000360594600045},
      doi          = {10.1016/j.surfcoat.2015.06.048},
      url          = {https://juser.fz-juelich.de/record/255546},
}