| 摘要 |
PURPOSE: To produce a member in which a wear resistant film is formed with superior adhesion on the surface of a milling tool, etc., by forming an (Al, Ti) (N, C) wear resistant film having respectively specified composition and thickness on the surface of a base material. CONSTITUTION: This wear resistant film coated member can be produced by forming a wear resistant film having a chemical composition represented by (Alx , Ti1-x ) (Ny , C1-y ) and also having 0.8-10μm film thickness on the surface of a base material, where 0.56<=x<=0.75 and 0.6<=y<=1 are satisfied. These component ranges are within the compositional range having NaCl type (B1 structure), and this film is an ALN solid solution into which TiN is allowed to enter by 25-44 mole %. When Al layer (x) exceeds the upper limit, the film composition becomes approximate to AlN, and as a result, the film is softened and sufficient hardness cannot be obtained and flank wear becomes liable to occur. On the other hand, when (x) is below the lower limit, oxidation starting temp. becomes <=800 deg.C. Hardness is increased and wear resistance is improved with the decrease in (y) but oxidation resistance is deteriorated and crator wear becomes liable to occur when it is below the lower limit.
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