| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a conventional combined hard coating member composed of a Ti-Al-containing compound is inferior, because of many defects and strain of the coating itself, in the adhesion between the coating and a material adjacent to it and is liable to suffer peeling of the coating and is also inferior in the various properties of the coating itself and, for example, in the case of use as a cutting tool, this member rapidly causes the development of peeling, fine chipping, wear, or the like, due to the defects and strain of the coating itself and has only a short life. SOLUTION: In the member coated with a combined hard coating, the surface of a base material is coated with a single-layer or a laminated coating layer including a combined hard coating of at least one kind among titanium- and aluminum-containing compound nitrides, compound carbides, compound carbonitrides, compound nitroxides, compound carboxides and compound carbonitroxides. Moreover, when X-ray diffraction is performed using a copper target on the surface of this coating, the following inequalities are satisfied: h (200)/h (111)>=4.0, where h (200) and h (111) represent the peak heights of the (200) crystal plane and the (111) crystal plane, respectively; and 1.5>=d (200)/d (111)>=0.8, where d (200) represents the half-width of the peak of the (200) crystal plane and d (111) represents the half-width of the peak of the (111) crystal plane.
|
