Effect of hot deformation and heat treatment of VT-8 alloy on its endurance

We study the effect of various types of hot deformation (forging, stamping, and upsetting) with subsequent heat treatment on the mechanical and fatigue characteristics and the crack resistance of VT-8 titanium alloy. It is shown that the maximum value of σ-1 for smooth specimens is attained by forging in the β-region at a temperature of 1050°C; for specimens with notches andK th, the maximum value of σ-1 is guaranteed by upsetting in the β-region at the same temperature.