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US 7,442,266 B2Granted
High-strength titanium alloy and method for production thereof
AssigneeKabushiki Kaisha Toyota Chuo Kenkyusho
InventorsTadahiko Furuta, Kazuaki Nishino, Takashi Saito, JungHwan Hwang
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Abstract
A high-strength titanium alloy of the present invention includes Ti as a major component, 15 to 30 at % Va group element, and 1.5 to 7 at % oxygen (O) when the entirety is taken as 100 atomic % (at %), and its tensile strength is 1,000 MPa or more. Overturning the conventional concept, regardless of being high oxygen contents, it has been possible to achieve the compatibility between the high strength and high ductility on a higher level.
Claims10
A high-strength titanium alloy, comprising:
- titanium (Ti) as a major component;
- 15 to 30 at % of a Va group element;
- and
- 2.4 to 6 at % of oxygen (O) when the entirety is taken as 100 atomic % (at %);
- wherein the alloy tensile strength is 1,000 MPa or more, and
- wherein the alloy has a fault-shaped deformation structure obtained by subjecting the alloy to cold working.
3 more elements
Dependencies are inferred from the claim text.