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Title:
TITANIUM MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/170979
Kind Code:
A1
Abstract:
This titanium material is configured such that: in a range from the surface to a position at which the oxygen concentration measured in the thickness direction from the surface by a glow discharge spectroscopic analysis method is 1/3 the maximum value, the average nitrogen concentration and the average carbon concentration are both 14.0 at% or less, and the average hydrogen concentration is 30.0 at% or less; and the difference between the c-axis lattice constant of α-phase Ti as determined by X-ray diffraction measurement by a parallel beam method in which the angle of incidence on the surface is 0.3 degrees and the c-axis lattice constant of α-phase Ti as determined by X-ray diffraction measurement by an intensive method at the plate thickness center is 0.015 Å or less.

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Inventors:
MATSUMOTO MINAMI (JP)
TAKAHASHI KAZUHIRO (JP)
MIYOSHI RYOTARO (JP)
KANEKO MICHIO (JP)
YAMAMOTO MASAHIRO (JP)
Application Number:
PCT/JP2022/011131
Publication Date:
September 14, 2023
Filing Date:
March 11, 2022
Export Citation:
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Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B21B1/22; B21B3/00; C22C14/00; C22F1/00; C22F1/18
Domestic Patent References:
WO2020075667A12020-04-16
WO2011081077A12011-07-07
WO2018084184A12018-05-11
WO2020255963A12020-12-24
Foreign References:
JP2021028407A2021-02-25
JP2002012962A2002-01-15
JP2013142183A2013-07-22
JP2009068026A2009-04-02
JP2017031460A2017-02-09
JP2011020135A2011-02-03
JPH10317118A1998-12-02
JP2020183551A2020-11-12
JP2022049105A2022-03-29
Other References:
ANONYMOUS: "Heat treatment of titanium and titanium alloys", METAL HEAT CO., LTD., 14 March 2014 (2014-03-14), XP093089614, Retrieved from the Internet [retrieved on 20231009]
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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