Cermet, method for producing cermet, and cutting tool

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United States of America Patent

PATENT NO 9850558
SERIAL NO

14897194

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Abstract

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A cermet contains hard phase particles containing Ti and a binding phase containing at least one of Ni and Co, and 70% or more (by number) of the hard phase particles have a cored structure containing a core and a peripheral portion around the core. The core is composed mainly of at least one of Ti carbide, Ti nitride, and Ti carbonitride, and the peripheral portion is composed mainly of a Ti composite compound containing Ti and at least one selected from W, Mo, Ta, Nb, and Cr. The core has an average particle size α, the peripheral portion has an average particle size β, and α and β satisfy 1.1≦β/α≦1.7.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO ELECTRIC INDUSTRIES LTD5-33 KITAHAMA 4-CHOME CHUO-KU OSAKA-SHI OSAKA 541-0041

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Michiuchi, Masato Itami, JP 12 13
Tsuda, Keiichi Itami, JP 38 321
Yamanishi, Takato Itami, JP 18 6

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