Patent attributes
A hard-coated member comprising a hard coating comprising a lowermost layer, an intermediate laminate and an uppermost layer on a substrate, the intermediate laminate being constituted by alternately laminated layers A and layers B having different compositions, the layers A and the layers B being respectively made of at least one selected from the group consisting of nitrides, borides, carbides and oxides of metal components having compositions represented by the formula of AlWCrXTiYSiZ, wherein W, X, Y and Z respectively represent atomic % of Al, Cr, Ti and Si, W+X+Y+Z=100, and these combinations, the layers A meeting the condition of 70≦W+X<100, the layers B meeting the condition of 30≦Y<100, and the uppermost layer being made of at least one selected from the group consisting of nitrides, carbides, sulfides and borides of Ti or Ti and Si and these combinations, or at least one selected from the group consisting of nitrides, carbides, sulfides and borides of Cr or Cr and Si and these combinations.
