α-β type titanium alloy

Alloys or metallic compositions – Titanium base

Reexamination Certificate

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C420S420000, C420S421000

Reexamination Certificate

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06849231

ABSTRACT:
There is provided an α-β type titanium alloy having a normal-temperature strength equivalent to, or exceeding that of a Ti-6Al-4V alloy generally used as a high-strength titanium alloy, and excellent in hot workability including hot forgeability and subsequent secondary workability, and capable of being hot-worked into a desired shape at a low cost efficiently. There is disclosed an α-β type titanium alloy having high strength and excellent hot workability wherein 0.08-0.25% C is contained, the tensile strength at room temperature (25° C.) after annealing at 700° C. is 895 MPa or more, the flow stress upon greeble test at 850° C. is 200 MPa or less, and the tensile strength/flow stress ratio is 9 or more. A particularly preferred α-β type titanium alloy comprises 3-7% Al and 0.08-025% C as α-stabilizers, and 2.0-6.0% Cr and 0.3-1.0% Fe as β-stabilizers.

REFERENCES:
patent: 2726954 (1955-12-01), Jaffee et al.
patent: 3986868 (1976-10-01), Crossley
patent: 5509979 (1996-04-01), Kimura
patent: 5759484 (1998-06-01), Kashii et al.
patent: 0 851 036 (1998-07-01), None
patent: 0 969 109 (2000-01-01), None
patent: 880470 (1961-10-01), None
patent: 1 023 284 (1966-03-01), None
patent: 1 079 416 (1967-08-01), None
ASM Handook, vol. 2, Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, 1990, pp. 592-605.*
N. Machida, et al., Materials Science Forum, vol. 357-359, pp. 539-544, XP-002226170, “Grain Refinement and Superplasticity of Reaction Sintered TiC Dispersed Ti Alloy Composites Using Hydrogenation Treatment”, 2001.

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