High wear resistant hard film

Details High wear resistant hard film High wear resistant hard film

2007-06-05

2007-06-05

Turner, Archene (Department: 1775)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

C428S697000, C428S698000, C428S699000

Reexamination Certificate

active

10866869

ABSTRACT:
A high wear resistant hard film is characterized by including a coating layer consisting of a metal nitride, which is formed on the outside surface of an object to be treated; a substrate layer consisting of a nitride of Ti or Cr, which is provided between the coating layer and the object to be treated; and an intermediate layer containing compositions of the coating layer in contact with the intermediate layer and the substrate layer, which is provided at an interface between the coating layer and the substrate layer, and a tool is provided with the film. There is provided a hard film having excellent oxidation resistance even at 1000° C. or higher and also having very high wear resistance.

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