CPC B23B 27/148 (2013.01) [C23C 28/042 (2013.01); C23C 28/044 (2013.01); C23C 28/048 (2013.01); B23B 2222/04 (2013.01); B23B 2224/28 (2013.01); B23B 2224/32 (2013.01); B23B 2224/36 (2013.01); B23B 2228/105 (2013.01)] | 5 Claims |
1. A coated tool, comprising:
a base; and
a coating layer located on the base, wherein
the coating layer comprises a first layer having a thickness of 1 μm or more located near the base, and a second layer comprising Al2O3 particles which is in contact with the first layer and is located more away from the base than the first layer, and
a difference (A2−A1) between an erosion rate A2 in the second layer and an erosion rate A1 in the first layer is 0.60 to −0.30 μm/g, wherein the erosion rate is obtained by collision of a liquid A in which 3 mass % of spherical Al2O3 particles having a mean particle diameter of 1.1-1.3 μm is dispersed in pure water.
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