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@PHDTHESIS{Nowak:173039,
      author       = {Nowak, Wojciech},
      title        = {{H}igh {T}emperature {C}orrosion of {A}lloys and {C}oatings
                      in {G}as-{T}urbines {F}ired {W}ith {H}ydrogen-{R}ich
                      {S}yngas {F}uels},
      volume       = {239},
      school       = {RWTH Aachen},
      type         = {Dr.},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {FZJ-2014-06452},
      isbn         = {978-3-95806-012-8},
      series       = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
                      Umwelt / Energy $\&$ Environment},
      pages        = {201 S.},
      year         = {2014},
      note         = {RWTH Aachen, Diss., 2014},
      abstract     = {One of the possible ways to reduce the CO$_{2}$ emissions
                      from coal fired power plants is to use a H$_{2}$-rich syngas
                      in the gas turbine as a fuel which is realized in the
                      Integrated Gasification Combined Cycle (IGCC). However,
                      burning syngas results in higher amount of water vapourin
                      the turbine environment compared to the turbines operating
                      on e.g. natural gas. In the present studies the effect of
                      water vapour on the oxidation behaviour of three
                      materialgroups used in stationary gas turbines was
                      investigated, including: 1. A polycrystalline Ni-base
                      superalloy Rene 80, which is representative of a chromia
                      forming alloys; 2. An alumina forming, Re-containing MCrAlY
                      coating, and 3. APS-TBC systems based on Rene 80 and having
                      the same MCrAlY as the bondcoat. The three materials types
                      were tested mainly at 1050°C, however, some experiments
                      were also performed at higher temperatures: 1080°C and
                      1120°C in various atmospheres including those based on
                      Ar-O$_{2}$ and synthetic air with various water vapour
                      contents. The results obtained for Rene 80 in Ar-O$_{2}$
                      based atmospheres showed that water vapour addition had only
                      a minor effect on the scale composition and growth rate.
                      However, in the synthetic air based atmospheres water vapour
                      addition suppressed internal Ti nitridation. After longer
                      exposure times (over 1000 h at 1050°C) higher material loss
                      was observed in the H2$_{O}$-containing synthetic air, which
                      might be related to evaporation of Cr, Mo, W oxyhydroxide
                      species. [...]},
      keywords     = {Dissertation (GND)},
      cin          = {IEK-2},
      cid          = {I:(DE-Juel1)IEK-2-20101013},
      pnm          = {122 - Power Plants (POF2-122)},
      pid          = {G:(DE-HGF)POF2-122},
      typ          = {PUB:(DE-HGF)11},
      url          = {https://juser.fz-juelich.de/record/173039},
}