| US 7,521,131 B2 | ||
| Hard coating excellent in wear resistance and in oxidation resistance and target for forming the same | ||
| Kenji Yamamoto, Kobe (Japan) | ||
| Assigned to Kobe Steel, Ltd., Kobe-shi (Japan) | ||
| Filed on Sep. 29, 2005, as Appl. No. 11/237,798. | ||
| Claims priority of application No. 2004-288042 (JP), filed on Sep. 30, 2004; and application No. 2005-246660 (JP), filed on Aug. 26, 2005. | ||
| Prior Publication US 2006/0068225 A1, Mar. 30, 2006 | ||
| Int. Cl. B32B 9/00 (2006.01) | ||
| U.S. Cl. 428—698 [106/286.1; 106/286.2; 106/286.4; 106/286.5; 106/287.17; 428/697; 428/699] | 12 Claims |
| 1. A hard coating excellent in wear resistance and oxidation resistance which consists of a composition represented by the
formula:
(Ala,Mb,Cr1-a-b)(C1-eNe)
where M represents W and/or Mo; and a, b and e, which represent atomic ratios of Al, M and N, respectively, satisfy the following
relations:
0.25≤a≤0.65,
0.05≤b≤0.35, and
0.5≤e≤1.
|