| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a surface coated cutting tool including a coat that can reduce crater wear and giving excellent wear resistance.SOLUTION: A surface coated cutting tool includes: a base material; and a coat formed on the base material. The coat includes one or more layers, at least one out of the layers being a titanium compound layer containing a first compound represented by a chemical formula of TiMZ, where X and Y denote atomic ratios, X satisfies 0<X≤0.08, Y satisfies 0.1≤Y≤1, Z denotes at least one element selected from a group consisting of boron, oxygen, carbon, and nitrogen, M denotes Nb, and Al, Si, and Zr are not contained). The first compound has a crystal structure for which a ratio B/A of a peak strength A in (111) plane to a peak strength B in (200) plane in X-ray diffraction satisfies 0≤B/A≤1, and the crystal grain size is not less than 0.1 nm and not more than 200 nm.</p> |
