SU141628A1 - Titanium based alloy - Google Patents

Description

A titanium-based alloy is proposed, characterized by a 1% lower aluminum content. This alloy has high technological plasticity both in cold and heated conditions, strength and heat strength, good weldability and thermal stability.

The described alloy based on titanium contains 0.8-2.0% manganese and 1-2% aluminum.

The mechanical properties of 1 mm thick sheets annealed at 680 ° for 20 litas of the proposed alloy are as follows: tensile strength — 70 kg / l.i., yield strength — 57 kg1 mm, relative elongation — 33%, impact strength — 10 kg-1.

The mechanical properties of the proposed alloy at 450 ° are as follows; durability limit of 31 kg / mm - yield strength of 22 kg / mm, relative elongation - 35%, long-term strength per 100 hours (at 400 °) is 29 kg / mm, creep limit per 100 hours - not less than 20 kg / mm

Hot deformation of the alloy takes place in the temperature range 1050-800 °. Sheet shtampovka parts can be carried out in a cold state. The limiting coefficient of stretching when clamping is 1.8. The minimum bend radius is 1.5-2.0 sheet thickness. The alloy is well welded by argon arc welding. It retains a rather high level of plasticity at low temperatures (-200 °).

The proposed alloy is suitable for the manufacture of foil and tape; thinner 0.8 mm, and also be used to produce sheets, rods, forgings, stampings, pipes and wires.

Subject invention

A titanium-based alloy containing 0.8-2.0% of manganese and aluminum, from which the scissors are used and in order to increase its technological plasticity and improve weldability, aluminum is introduced into its composition in an amount from 1 to 2%.