Coated Cemented Carbides Wear Resistance Tool

A coated cemented carbide alloy, excellent in toughness as well as wear resistance and which is used for cutting tools and wear resistance tools is provided herein,

A coated cemented carbide alloy, excellent in toughness as well as wear resistance and which is used for cutting tools and wear resistance tools is provided herein. This coated cemented carbide alloy is composed of a cemented carbide substrate consisting of a hard phase of at least one member selected from carbides, nitrides and carbonitrides of Group IVb, Vb and VIb metals of the Periodic Table and a binder phase consisting of at least one member selected from the iron group metals, and a monolayer or multilayer, provided on the substrate consisting of at least one member selected from carbides, nitrides, oxides and borides of Group IVb, Vb and VIb metals of Periodic Table, solid solutions thereof and aluminum oxide, and wherein a binder phase-enriched layer is provided in a space 0.01 mm and 2 mm below the surface of the substrate with A-type and/or B-type pores inside the binder phase-enriched layer.


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