Effect of prior heat treatment on cyclic endurance of sheet titanium alloys of various strength groups

Abstract

Shaping operations including bending and stretching deformation are often used in producing members of thin-wall titanium structures of aircraft. At the same time published sources do not give much data on the effect of the degree of deformation on the cyclic endurance of sheet titanium alloys. In addition the problem of how much alloys of medium and high strength can be deformed without diminishing their operating capacity still remains open. The present paper is devoted to the possibility of deforming sheet titanium alloys of different strength groups by bending and stretching without reducing their cyclic life.