Patent ID: 9624565
Date: 2017-04-18
CPC Classifications: C22C,C22F

Claim:
1. A titanium alloy having a structure classified as near α, and comprising 4 to 9 mass % of Al, 2 to 10 mass % of V and the remainder of Ti and inevitable impurities, the alloy further comprising: structure in which equiaxial crystals having average crystal particle diameter less than 1000 nm are uniformly dispersed, hardness less than 400 HV, an area ratio of a β phase is more than 0% and not more than 1.0%, by measurement of a phase map by an electron backscatter diffraction (EBSD) method, and tensile strength not less than 1200 MPa, wherein the titanium alloy is formed by performing hot working of a processing starting material in which an α′ martensite phase is generated by rapid cooling from a temperature not less than a β transits temperature.