| 摘要 |
A member with alumina-based hard coating formed there-on wherein said hard coating contains nitrogen and has a composition represented by the formula (1) below: Al1-xMx(O1-yNy)z  (1) (0≦̸x≦̸0.5, 0<y≦̸0.5, z>0) where, M denotes at least one species of elements selected from those belonging to Group 4, Group 5, and Group 6 (excluding Cr), and such elements as Y, Mg, Si, and B. The hard coating based on γ-alumina, which is formed at temperatures no higher than 1000° C., is superior in wear resistance and heat resistance. |
