Title:
NITRIDING TREATMENT METHOD AND TUNGSTEN CARBIDE-BASED CEMENTED CARBIDE ALLOY
Document Type and Number:
WIPO Patent Application WO/2021/187508
Kind Code:
A1
Abstract:
A tungsten carbide-based cemented carbide alloy according to the present invention comprises tungsten carbide and an additive, has a nitride surface, and has a domain in which nitrogen and tungsten carbide coexist. According to the present invention, the hardness of a cemented carbide alloy which has been subjected to a nitriding treatment can be improved.
Inventors:
HARA TAMIO (JP)
HARA YASUHIRO (JP)
HARA YASUHIRO (JP)
Application Number:
PCT/JP2021/010747
Publication Date:
September 23, 2021
Filing Date:
March 17, 2021
Export Citation:
Assignee:
PLASMA RES AND DEVELOPMENT LABORATORY CO LTD (JP)
International Classes:
C23C8/36
Domestic Patent References:
| WO2012153767A1 | 2012-11-15 |
Foreign References:
| JP2007217771A | 2007-08-30 | |||
| JPS5189841A | 1976-08-06 | |||
| JP2005307284A | 2005-11-04 |
Other References:
HOSONO KOTA ET AL.: "Surface modification of hard metal dies for long-life", REPORTS OF INDUSTRIAL RESEARCH INSTITUTE OF GIFU PREFECTURE, no. 2, 2014, pages 15 - 18, ISSN: 2188-5826
Attorney, Agent or Firm:
ASAHI PATENT FIRM (JP)
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