| 摘要 |
PROBLEM TO BE SOLVED: To provide a crystalline oriented hard coated material excellent in various properties in the wide range from the low temperature to the high temperature and excellent in service life by forming a coating film consisting of a single layer of one kind of, or a multilayer of two or more kinds of nitride, carbonitride, nitrooxide, carbooxide and carbonitride oxide of Ti and Al on a base material, and maximizing the peak intensity of the crystal face of the film in the (200) crystal face. SOLUTION: When this coated material is used as a cutting tool or a wear- resistant tool, the base material such as cemented carbide and TiC cermet containing nitrogen is preferable. When the atomic ratio of Ti and Al incorporated in the coating film is 48-75: 52-25, the hardness becomes high, the peelability resistance, the oxidation resistance and the thermal impact resistance are excellent, and the service life becomes excellent. In the case of a rotary cutting tool of heavy-duty applications, the film thickness is preferably 0.5-5μm. The strength ratio of the (200) crystal face to the (111) crystal face in a case of the X-ray diffraction from the film surface, is preferably 2-100.
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