HARD COATING FILM AND METHOD FOR PRODUCING SAME

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Provided is a hard coating film which has excellent abrasion resistance, and which has a small friction coefficient and is rarely seized under a sliding environment, i.e., has excellent lubricity. The hard coating film satisfies the chemical compositional formula : M 1-a-b C a N b , said hard coating film being characterized in that M represents at least one element selected from the group consisting of Ti, Cr and Al or represents a combination of the aforementioned element and at least one element selected from the group consisting of Group-4 elements excluding Ti, Group-5 elements, Group-6 elements excluding Cr, Si, Y and rare earth elements, wherein the atomic ratio of the aforementioned M, C, N meets the requirements respectively represented by the formulae : 0.01 ‰¤ a ‰¤ 0.50, 0.10 ‰¤ b ‰¤ 0.50 and 0 < 1-a-b, and the ratio (y) of the amount of carbon-carbon bonds to the total amount of carbon-containing bonds in the coating film is 0.20 or more.