Wear Resistant Hard Coating For Workpiece And Method For Producing The Same

Wear Resistant Hard Coating For Workpiece And Method For Producing The Same

  • CN 104,032,257 A
  • Filed: 03/03/2008
  • Published: 09/10/2014
  • Est. Priority Date: 03/23/2007
  • Status: Active Application
First Claim
Patent Images

1. workpiece, there is surface, wherein said surface be coated with at least partly the wear-resisting multi-layer type hard coat by PVD process deposits, wherein this hard coat comprises at least the first supporting layer and the second layer, wherein this first layer is between this workpiece and this second layer, the coating material that wherein this first layer comprises following composition:

  • (Ti aAl 1-a)N 1-x-yC xO y0.4<

    a<

    0.6 wherein, 0≤

    x and y<

    0.3,Or(Al bCr 1-b)N 1-x-yC xO y0.5<

    b<

    0.7 wherein, 0≤

    x and y<

    0.3;

    This second layer comprises the coating material of following composition;

    (Al 1-c-d-eCr cSi dM e)N 1-x-yC xO yAt least one element outside dechromisation in the transition metal of M indication cycle table system the 4th, 5,6 families wherein, and0.2<

    c≤

    0.35,0<

    d≤

    0.20,0<

    e≤

    0.04, andThis second layer comprises two different crystal phases.

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