Title:
チタン合金素材
Document Type and Number:
Japanese Patent JP6785366
Kind Code:
B2
Abstract:
Provided is a titanium alloy material having a composition generally classified as a near α type and/or α+β type, the titanium alloy material being characterized by having an outer shell region, located on the surface side and having a Vickers hardness in the range of at least 400 HV and less than 450 HV, and a central region, located inside the outer shell region and having a Vickers hardness of at least 320 HV and less than 400 HV, wherein the boundary between the outer shell region and the central region is located, in the range of 1/200-1/40 of the length or diameter in the minor axis direction in a transverse plane, inward from the surface.
Inventors:
Ayada Norihiko
Satoshi Okabe
Yoshiki Ono
Toru Shiraishi
Satoshi Okabe
Yoshiki Ono
Toru Shiraishi
Application Number:
JP2019509378A
Publication Date:
November 18, 2020
Filing Date:
March 30, 2018
Export Citation:
Assignee:
Nippon Jojo Co., Ltd.
International Classes:
C22C14/00
Domestic Patent References:
| JP1156457A | ||||
| JP1319657A | ||||
| JP2013076110A |
Foreign References:
| WO2005005676A1 | ||||
| WO2016084980A1 |
Attorney, Agent or Firm:
Sumio Tanai
Yasushi Matsunuma
Norihiko Ara
Hiroki Ninai
Yasushi Matsunuma
Norihiko Ara
Hiroki Ninai