Hard coating and target for forming hard coating
AssigneeKabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
InventorKenji YAMAMOTO
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Abstract
Provided is a hard coating having, in particular, excellent oxidation resistance, high hardness, and excellent abrasion resistance as compared with conventional hard coatings such as TiSiN, TiAlSiN, TiCrAlSiN, and AlCrSiN coatings. The hard coating according to the present invention has a compositional formula of (TiαCr1-α)1-aGea(C1-xNx), where the atomic ratios of the elements satisfy the expressions: 0≦α≦1, 0.010≦+≦0.20, and 0.5≦x≦1.
Claims10
A hard coating having a compositional formula of (TiαCr1-α)1-aGea(C1-xNx),
- the atomic ratios a, a, and x of elements meeting conditions:
- 0≦α≦1;
- 0.010≦a≦0.20, and
- 0.5≦x≦1.
A hard coating having a compositional formula of (TiαCr1-α)1-a-bGeaSib(C1-xNx),
- the ratios α, a, b, and x of elements meeting conditions:
- 0≦α≦1;
- 0.010≦a≦0.20;
- b≦0.29;
- a+b≦0.30;
- and
- 0.5≦x≦1.
A hard coating having a compositional formula of (TiαCr1-α)1-a-cGeaAlc(C1-xNx),
- the atomic ratios α, a, c, and x of elements meeting conditions:
- 0≦α≦1;
- 0.010≦a≦0.15;
- 0.40≦c≦0.70;
- and
- 0.5≦x≦1.
A hard coating having a compositional formula of (TiαCr1-α)1-a-b-cGeaSibAlc(C1-xNx),
- the atomic ratios a, a, b, c, and x of elements meeting conditions:
- 0≦α≦1;
- 0.010≦a≦0.10;
- b≦0.15;
- 0.40≦c≦0.70;
- and
- 0.5≦x≦1.
Dependencies are inferred from the claim text.