| 摘要 |
A hard coating film having wear resistance superior to conventional TiAlN coating films, oxide coating films, and the like. The hard coating film of the present invention has a component composition represented by one of the following two formulas: (TiaAlbSic)Ox, wherein 0.3≰a≰0.7, 0.3≰b≰0.7, 0≰c≰0.2, a+b+c=1, and 0.8≰[x/(2a+1.5b+2c)]≰1.2; and (TiaCrdAlbSic)Ox, wherein 0.05≰a≰0.4, 0.1≰d≰0.85, 0≰b≰0.7, 0≰c≰0.2, a+b+c+d=1, and 0.8≰[x/(2a+1.5d+1.5b+2c)]≰1.2; where variables a, d, b, and c denote the atomic ratios of Ti, Cr, Al, and Si respectively, and variable x indicates the atomic ratio of O.
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