alpha + beta Titanium Alloy Sheet Excellent In Cold Rollability And Cold Handling Property And Process For Producing The Same

摘要

An alpha+beta type hot-rolled titanium alloy sheet, wherein: (a) ND represents the normal direction of a hot-rolled sheet; RD represents the hot rolling direction; TD represents the hot rolling width direction; theta represents the angle formed between the orientation of c axis and the ND; phi represents the angle formed between a plane including the orientation of the c axis and the ND, and a plane including the ND and the TD; (b1) XND represents the highest (0002) relative intensity of the X-ray reflection caused by crystal grains when theta is from 0� to 30� and phi is within the entire circumference; (b2) XTD represents the highest (0002) relative intensity of the X-ray reflection caused by crystal grains when theta is from 80� to 100� and phi is �10�. (c) The alpha+beta type titanium alloy sheet has a value for XTD/TND of at least 5.0.