Title:
RIGID-FILM-COATED OBJECT, MACHINE COMPONENT, AND BEARING
Document Type and Number:
WIPO Patent Application WO/2023/224026
Kind Code:
A1
Abstract:
Provided are: a rigid-film-coated object having hydrogen embrittlement resistance and wear resistance and having excellent unsusceptibility to separation; and a machine component and a bearing which include the rigid-film-coated object. The rigid-film-coated object 1 comprises a base 2 and a rigid film 3 for inhibiting hydrogen atoms from infiltrating and diffusing formed on a surface of the base 2, wherein the ratio of the Vickers hardness of the rigid film 3 to the Vickers hardness of the base 2 is 0.90-1.20, the Vickers hardness of the base 2 and the Vickers hardness of the rigid film 3 are 500-1,000 Hv each, and the rigid film 3 is an Ni coating film.
Inventors:
YAGITA KAZUHIRO (JP)
OHKI CHIKARA (JP)
OHKI CHIKARA (JP)
Application Number:
PCT/JP2023/018229
Publication Date:
November 23, 2023
Filing Date:
May 16, 2023
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
C23C26/00; C23C14/06; F16C19/16; F16C33/32; F16C33/58
Foreign References:
| JP2015036518A | 2015-02-23 | |||
| JP2007056301A | 2007-03-08 | |||
| JPH11350163A | 1999-12-21 |
Attorney, Agent or Firm:
WAKI Hikaru et al. (JP)
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