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@ARTICLE{Bolelli:866332,
      author       = {Bolelli, Giovanni and Vorkötter, Christoph and Lusvarghi,
                      Luca and Morelli, Stefania and Testa, Veronica and Vaßen,
                      Robert},
      title        = {{P}erformance of wear resistant {MC}r{A}l{Y} coatings with
                      oxide dispersion strengthening},
      journal      = {Wear},
      volume       = {444-445},
      issn         = {0043-1648},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2019-05488},
      pages        = {203116},
      year         = {2020},
      abstract     = {Aiming to devise suitable materials for sliding wear
                      protection at high temperature, aluminium oxide-dispersion
                      strengthened (ODS) CoNiCrAlY coatings were manufactured by
                      vacuum plasma spraying (VPS). Feedstock materials were
                      ball-milled powders with 2, 10 and $30 wt\%$ Al2O3
                      content. The ball-on-disc sliding wear behaviour of the
                      coatings was tested at 750 °C against an Al2O3
                      counterpart, and compared to a pure CoNiCrAlY coating
                      (obtained from a commercial feedstock not subjected to ball
                      milling) and to an uncoated Ni-base superalloy.Sliding wear
                      rates decrease from the uncoated superalloy
                      (≈3 × 10−5 mm3/(N·m)) to the pure CoNiCrAlY
                      coating (≈2 × 10−5 mm3/(N·m)) and to the ODS ones,
                      with the notable exception of the $10 wt\%$
                      Al2O3-containing sample.Analyses of worn samples indicate
                      that pure CoNiCrAlY is subject to severe adhesive wear,
                      mitigated by the formation of a thick (>1 μm) “glaze”
                      layer via compaction and (probable) sintering of
                      tribo-oxidized debris particles. Addition of Al2O3 particles
                      to the CoNiCrAlY matrix can either enhance or worsen the
                      “glaze” stability. Specifically, a coating strengthened
                      with $30 wt\%$ Al2O3 provides an especially good
                      mechanical support to the “glaze”. This produces
                      beneficial effects resulting in a particularly low wear rate
                      of ≈3 × 10−6 mm3/(N·m).},
      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:000513001800001},
      doi          = {10.1016/j.wear.2019.203116},
      url          = {https://juser.fz-juelich.de/record/866332},
}