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@ARTICLE{Pillai:824682,
      author       = {Pillai, Rishi and Chyrkin, Anton and Grüner, Daniel and
                      Nowak, Wojciech and Zheng, N. and Kliewe, A. and Quadakkers,
                      Willem J.},
      title        = {{C}arbides in an {A}luminised {S}ingle {C}rystal
                      {S}uperalloy: {T}rancing the {S}ource of {C}arbon},
      journal      = {Surface and coatings technology},
      volume       = {288},
      issn         = {0257-8972},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2016-07240},
      pages        = {15-24},
      year         = {2016},
      abstract     = {Single crystal Ni-base superalloys contain marginal amounts
                      of carbon and as a consequence, diffusion coatings on these
                      superalloys are generally expected to result in carbide free
                      interdiffusion zones (IDZ) containing intermetallic
                      precipitates. The experimentally observed presence of
                      carbides in the IDZ of the aluminised (CVD) single crystal
                      SC2000 led to a thorough investigation of the source of
                      carbon as well as the precipitate phases occurring in the
                      coating and in the IDZ. Scanning electron microscopy (SEM)
                      combined with energy- and wavelength-dispersive X-ray
                      spectroscopy (EDX/WDX) was employed to characterise the
                      aluminised superalloy specimens. Average concentration
                      profiles were determined by glow discharge optical emission
                      spectroscopy (GDOES). Phases were then identified by X-Ray
                      diffraction (XRD) and electron backscatter diffraction
                      (EBSD). The carbides in the interdiffusion zone were found
                      to be of the type M6C/M12C. By aluminising specimens of
                      SC2000 with different thicknesses, the available carbon
                      reservoir for the precipitation of carbides was varied. The
                      amount of carbides in the IDZ after coating decreased with
                      decreasing thickness of the substrate specimen. Hence it
                      could be confirmed that carbon indeed diffused from the
                      substrate to the coating/substrate interface and did not
                      originate from the service environment.},
      cin          = {IEK-2},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-2-20101013},
      pnm          = {111 - Efficient and Flexible Power Plants (POF3-111)},
      pid          = {G:(DE-HGF)POF3-111},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000371549200003},
      doi          = {10.1016/j.surfcoat.2015.12.066},
      url          = {https://juser.fz-juelich.de/record/824682},
}