Hard coating film, material, coated with the hard coating film, and shaping tool for cold - plastic processing

摘要

Hard coating film, characterized by a chemical composition of (v_xM_{1 - x})(B_aC._bN_{1 - a - b}), wherein $0,4\; \leqq \; x\; \leqq \; 0,7\; (1a)$$0\; \leqq \; a\; \leqq \; 0,2\; (2a)$$0\; \leqq \; 1\; –\; a\; –\; b\; \leqq \; 0,35\; (3a)$$0,6\; \leqq \; b\; \leqq \; 1\; (4a)$M is at least one species of elements of different from v is, which is applied to the groups 4 and 5 of the periodic table and si and al; and x, 1 – x, a, b and 1 – a – b the atomic ratio of v, m, b, c and n represent.