Title:
TITANIUM ALLOY MATERIAL, TITANIUM ALLOY WIRE MATERIAL, TITANIUM ALLOY POWDER MATERIAL, AND METHOD FOR PRODUCING TITANIUM ALLOY MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/181104
Kind Code:
A1
Abstract:
Provided is a titanium material that has a predetermined chemical composition, and at least partially includes an α phase and a β phase as metallic structures. An average of the major axis lengths of elliptic approximations of the α phase is between 20 and 80 µm both inclusive. An average of the aspect ratios of the α phase is between 3.0 and 5.0 both inclusive. An impact value CIS obtained by dividing an impact absorbing energy obtained by the Charpy test at 25°C by the cross-sectional area of a test piece is 40 J/cm2 or greater. A tensile strength TS is 900 MPa or greater. The impact value CIS and the tensile strength TS satisfy 0.3 × TS + CIS ≥ 340.
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Inventors:
MORI KENICHI (JP)
OKUI TOSHIYUKI (JP)
OKUI TOSHIYUKI (JP)
Application Number:
PCT/JP2022/013076
Publication Date:
September 28, 2023
Filing Date:
March 22, 2022
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C22C14/00; B22F1/00; B22F10/25; B22F10/28; B22F10/66; B33Y70/00; B33Y80/00
Domestic Patent References:
| WO2021251145A1 | 2021-12-16 |
Foreign References:
| JP2010007166A | 2010-01-14 | |||
| JP2021130861A | 2021-09-09 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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