Chromium coating with high hardness capable of resisting wear, strain surface fatigue and corrosion all at the same time
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United States of America Patent
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Dec 4, 1984
Grant Date -
N/A
app pub date -
Sep 2, 1982
filing date -
Sep 3, 1981
priority date (Note) -
Expired
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Abstract
By cathode sputtering in a reactive environment, a coating of a solid solon of chromium and an element such as nitrogen, carbon, phosphorus, boron or silicon is deposited. The content of the above element is higher than the saturation limit of the solid solution in chromium. It ranges between T.sub.m =0.2% and T.sub.M =3% by weight for carbon and between T.sub.m =0.04% and T.sub.M =3.5% by weight for nitrogen.
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