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@ARTICLE{Singh:834823,
      author       = {Singh, R. and Rauwald, K.-H. and Wessel, E. and Mauer, G.
                      and Schruefer, S. and Barth, A. and Wilson, S. and Vassen,
                      R.},
      title        = {{E}ffects of substrate roughness and spray-angle on
                      deposition behavior of cold-sprayed {I}nconel 718},
      journal      = {Surface and coatings technology},
      volume       = {319},
      issn         = {0257-8972},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2017-04714},
      pages        = {249 - 259},
      year         = {2017},
      abstract     = {In this study, Inconel 718 powder particles were
                      successfully cold-sprayed on Inconel 718 substrate by using
                      nitrogen gas for a repair application of aero engine
                      components. The effects of substrate roughness and
                      spray-angle on the deposition behavior of Inconel 718
                      particles were investigated. It has been found that the
                      deposition behavior of Inconel 718 powder on Inconel 718
                      substrates is highly influenced by substrate surface
                      roughness. Single powder particle interaction with
                      substrates of different roughness showed that plastic
                      deformation and interfacial material mixing is higher if
                      powder particles interact with substrates of higher
                      roughness. Consequently, substrates with lower roughness
                      demonstrated many abnormalities (e.g. cracks, peeling-off)
                      during the deposition. Substrate roughness is limited to
                      influence the deposition efficiency of the first few layers.
                      Besides, it is also observed that particle deformation and
                      coating quality are significantly affected by the
                      spray-angle because of asymmetric deformation of the
                      particle due to additional tangential momentum. Moreover, it
                      is observed that deposition efficiency is reduced with a
                      decrease in spray-angle, while the coating porosity and
                      coating roughness show an inverse trend. Furthermore, the
                      effects of three input parameters, namely substrate
                      preparation, spray angle and stand-off distance, on four
                      outputs (responses), such as thickness, roughness, porosity
                      and Vickers-hardness of the coating were studied using
                      non-linear statistical regression analysis. The above
                      mentioned four outputs were found to be significantly
                      dependent on substrate preparation and spray-angle.},
      cin          = {IEK-1 / IEK-2},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-2-20101013},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000402357300029},
      doi          = {10.1016/j.surfcoat.2017.03.072},
      url          = {https://juser.fz-juelich.de/record/834823},
}