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US 2025/0027185 A1Published application
Titanium material
AssigneeSumitomo Electric Industries, Ltd.
InventorsNorimasa NISHIYAMA, Minori TERAMOTO
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Abstract
There is provide a titanium material containing 91% by mass or more of titanium, wherein a tensile strength σB MPa and a fracture elongation δ% of the titanium material have a relation of the following formula I: σ B ≥ 1 , TagBox[",", "NumberComma", Rule[SyntaxForm, "0"]] 600 - 30 δ ; Formula I in the above formula I, σB≥400 and δ≥20.
Claims20
A titanium material comprising 91% by mass or more of titanium,
- wherein a tensile strength σB MPa and a fracture elongation δ% of the titanium material have a relation of the following formula I:
- σ
-
- B
- ≥
- 1
- ,
- TagBox[",", "NumberComma", Rule[SyntaxForm, "0"]]
- 600
- -
- 30
-
- δ
- ;
- Formula
-
- I
- in the above formula I, σB 400 and δ≥20,
- an average grain diameter of crystal grains constituting the titanium material is 1 μm or more and 1,000 μm or less;
- and
- the titanium material comprises 50% by mass or more of titanium having a crystal structure of an omega phase.
18 more elements
A titanium material comprising 91% by mass or more of titanium,
- wherein a 0.2% yield strength σ0.2 MPa in a tensile test of the titanium material and a content c % by mass of components other than titanium in the titanium material have a relation of the following formula II:
- σ
- 0.2
- >
- 600
-
- c
- +
- 180
- ;
- Formula
-
- II
- in the above formula II, c is 0 or more and 9 or less,
- an average grain diameter of crystal grains constituting the titanium material is 1 μm or more and 1,000 μm or less;
- and
- the titanium material comprises 50% by mass or more of titanium having a crystal structure of an omega phase.
14 more elements
A titanium material comprising 91% by mass or more of titanium,
- wherein a tensile strength σB MPa of the titanium material and a content c % by mass of components other than titanium in the titanium material have a relation of the following formula III:
- σ
-
- B
- >
- 600
-
- c
- +
- 280
- ;
- Formula
-
- III
- in the above formula III, c is 0 or more and 9 or less,
- an average grain diameter of crystal grains constituting the titanium material is 1 μm or more and 1,000 μm or less;
- and
- the titanium material comprises 50% by mass or more of titanium having a crystal structure of an omega phase.
15 more elements
(canceled)
(canceled)
-14. (canceled)
Dependencies are inferred from the claim text.