| 摘要 |
A hard multilayer coated tool comprising: (a) a substrate (12); and (b) a multilayer coating (24) covering said substrate, said multilayer coating comprising first and second coating layers (14, 16) which are alternately laminated on said substrate, each of said first coating layers having an average thickness of 0.01-0.50~ m and containing titanium therein, each of said second coating layers having an average thickness of 0.01-0.50~ m and containing aluminum therein, said multilayer coating having an average thickness of 0.50-10.0~ m. The multilayer coating further comprises intermediate coating layers (22) each of which is interposed between said first and second coating layers, and each of which has an average thickness of 0.01-0.50~ m and contains aluminum therein, an aluminum content in said each of said intermediate coating layers being larger than that in said each of said first coating layers and smaller than that in said each of said second coating layers. |
