Title:
α + β TYPE TITANIUM ALLOY EXTRUSION SHAPE
Document Type and Number:
Japanese Patent JP2019167621
Kind Code:
A
Abstract:
To provide an α+β titanium alloy extrusion shape having high strength and ductility the same as the prior art, and having small warp, although having an acicular structure in a Ti-Al-Fe based α+β type titanium alloy having high strength compared with Ti-Al-V.SOLUTION: An α+β type titanium alloy extrusion shape has a component composition that contains, by mass%, Al:4.4 to 6.5%, and Fe:0.5 to 2.9%, and O, C and N limited to O:0.25% or smaller (including 0%), C:0.08% or smaller (including 0%), and N:0.05% or smaller (including 0%), respectively, the balance of Ti and inevitable impurities, a metal structure made of an acicular structure, an average of old β particle sizes of 300 μm or smaller.SELECTED DRAWING: Figure 2
Inventors:
NISHIYAMA MASAYA
SHIRAI YOSHIHISA
OKUI TOSHIYUKI
SHIRAI YOSHIHISA
OKUI TOSHIYUKI
Application Number:
JP2018181358A
Publication Date:
October 03, 2019
Filing Date:
September 27, 2018
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
C22C14/00
Domestic Patent References:
| JP2015004100A | 2015-01-08 | |||
| JP6176425B1 | 2017-08-09 | |||
| JPH0770676A | 1995-03-14 |
Foreign References:
| WO2014027677A1 | 2014-02-20 |
Attorney, Agent or Firm:
Intellectual Property Office