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@ARTICLE{Bakan:858379,
      author       = {Bakan, Emine and Mauer, Georg and Sohn, Yoo Jung and
                      Schwedt, Alexander and Rackel, Marcus Willi and Riedlberger,
                      Florian and Pyczak, Florian and Peters, Jan Oke and
                      Mecklenburg, Matthias and Gartner, Thomas Maria and Vaßen,
                      Robert},
      title        = {{C}old gas spraying of {T}i-48{A}l-2{C}r-2{N}b
                      intermetallic for jet engine applications},
      journal      = {Surface and coatings technology},
      volume       = {371},
      issn         = {0257-8972},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science84367},
      reportid     = {FZJ-2018-07265},
      pages        = {203-210},
      year         = {2019},
      abstract     = {The present article describes aspects of the cold gas spray
                      processability of the intermetallic Ti-48Al-2Cr-2Nb (at.
                      $\%)$ alloy, which is employed as a structural material in
                      gas turbine engines. The effects of processing parameters,
                      namely, gas pressure, gas temperature, spray distance, as
                      well as the gas atomized feedstock particle size
                      (d50 = 30 and 42 μm, respectively) and phase
                      composition on deposition, were investigated. The results
                      showed that when the highest available gas pressure
                      (40 bar) and temperature (950 °C) were combined with a
                      short spray distance (20 mm), well-adhering coatings could
                      be deposited regardless of the investigated particle size.
                      However, the maximum coating thickness could be achieved was
                      about 30 μm with a deposition efficiency of $1\%.$ Phase
                      composition of the gas atomized feedstock was investigated
                      with HT-XRD and according to the findings, heat treatment of
                      the feedstock under vacuum was carried out. With this
                      treatment, non-equilibrium, disordered α phase of the
                      atomized powder was transformed into an α, α2 and γ phase
                      mixture. At the same time, an increase in the hardness and
                      oxygen content of the powder was detected. Swipe test
                      performed with the heat treated powder revealed no
                      improvement in terms of deposition, in fact, the number of
                      adhering particles on the substrate was decreased in
                      comparison with that of the untreated powder.},
      cin          = {IEK-1},
      ddc          = {670},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000472694300022},
      doi          = {10.1016/j.surfcoat.2018.11.092},
      url          = {https://juser.fz-juelich.de/record/858379},
}