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A CHROMIUM-CONTAINING COATING, A METHOD FOR ITS PRODUCTION AND A COATED OBJECT

  • US 20170159198A1
  • Filed: 07/11/2014
  • Published: 06/08/2017
  • Est. Priority Date: 07/11/2014
  • Status: Active Grant
First Claim
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1. A chromium-based coating comprising at least one layer rich in crystalline phase or phases of nickel (Ni) and/or Ni compounds, and at least one layer rich in crystalline phase or phases of chromium (Cr) and/or Cr compounds, Cr being electroplated from a trivalent chromium bath, characterized in that the coating further comprises one or more crystalline phases of chromium-nickel-phosphorus (CrNiP), which CrNiP phase has been produced by heat treating a coating comprising at least one layer of nickel-phosphorus (NiP) and at least one layer of Cr.

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