Title:
サーメット、それを含む切削工具およびサーメットの製造方法
Document Type and Number:
Japanese Patent JP7020477
Kind Code:
B2
Abstract:
Cermet contains a hard phase which contains carbonitride containing Ti and Nb and a metallic binder phase containing an iron-group element. The hard phase includes a granular core portion and a peripheral portion which covers at least a part of the core portion. The core portion contains composite carbonitride expressed as Ti1-X-YNbXWYC1-ZNZ, where Y is not smaller than 0 and not greater than 0.05 and Z is not smaller than 0.3 and not greater than 0.6. The peripheral portion is composed to be higher in content of W than the core portion.
Inventors:
Masato Hokkaido
Okamura Katsumi
Okamura Katsumi
Application Number:
JP2019504869A
Publication Date:
February 16, 2022
Filing Date:
May 15, 2018
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
C22C29/04; B23B27/14; B23B51/00; B23C5/16; B23D77/00; B23F21/00; B23G5/06; C22C1/05
Domestic Patent References:
| JP2013181188A | ||||
| JP2010031308A | ||||
| JP9001405A |
Attorney, Agent or Firm:
Fukami patent office