AlCr-Based Coatings in Industrial Applications: Comparison
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Please note this is a comparison between Version 2 by Bruce Ren and Version 1 by Joerg Vetter.

AlCr-based hard nitride coatings with different chemical compositions and architectures have been successfully developed and applied over the last few decades. Coating properties are mainly influenced by deposition conditions and the Al/Cr content. The fcc structure is dominant for an Al-content up to Al0.7Cr0.3N and is preferred for most cutting applications. Different (AlCrX)N alloying concepts, including X = Si, W, B, V, have been investigated in order to enhance oxidation resistance and wear behaviour and to provide tribological properties. AlCr-based oxynitrides and even pure oxides (Al1−xCrx)2O3 with different crystalline structures have been explored. Multi- and nanolayered coatings within the AlCr materials system, as well as in combination with (TiSi)N, for example, have also been implemented industrially. The dominant deposition technology is the vacuum arc process. Recently, advanced high-power impulse magnetron sputtering (HiPIMS) processes have also been successfully applied on an industrial scale. 

  • AlCr-based
  • CrAl-based
  • (AlCrX)N
  • (Al1−xCrx)2O3
  • arc
  • HiPIMS
  • nanolayers
  • nanocomposite
  • structure
  • properties
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