SURFACE COATED MEMBER AND CUTTING TOOL

摘要

Disclosed is a surface coated member having excellent adhesion resistance and fracture resistance. A surface coated member (1) comprises a coating layer (3) on the surface of a base (2). The coating layer (3) is composed of a multilayer body wherein a titanium carbonitride (TiCN) layer (4), a continuously existing intermediate layer (5) containing titanium, aluminum, carbon and oxygen and having an average film thickness of 5-30 nm, and an ±-aluminum oxide (Al 2 O 3 ) layer (9) composed of aluminum oxide (Al 2 O 3 ) having an ± crystal structure are sequentially formed by deposition.