Titanium alloy wire rod and method of manufacturing titanium alloy wire rod

摘要

It is a titanium alloy wire including an α-phase and a β-phase, and in a cross section perpendicular to the longitudinal direction, the metal structure in the outer circumferential region from the surface to the depth of 3% of the wire diameter toward the center of gravity is the average crystal grain size Is an equiaxial structure having α crystal grains of 10.0 μm or less, and in a cross section perpendicular to the longitudinal direction, a metal structure in an inner region including the center of gravity from the center of gravity to a position of 20% of the line diameter toward the surface This is a bed tissue.