Characteristics and application of TC11 titanium alloy material

The nominal composition is Ti-6.5Al-3.5Mo-1.5Zr-0.3Si, which is an α-β type titanium alloy heat-resistant titanium alloy having an aluminum equivalent of 3.5 and a molybdenum equivalent of 7.3. The alloy also has good thermal processing properties (including conventional process properties and superplasticity) and can be welded and machined in a variety of ways. The β heat treatment and isothermal forging of the alloy have been rapidly developed.

The alloy also has some sensitivity to thermal salt stress corrosion.

The alloy is mainly used in the manufacture of compressor discs, blades, drums and other parts of aeroengines, and can also be used to manufacture aircraft structural parts. The alloy has a maximum long-term operating temperature of 500 ° C by thermal deformation and heat treatment of the α-β region. The semi-finished products produced include bars, forgings and die forgings.

TC11 titanium alloy is a high-temperature titanium alloy with a wide application in China. The maximum operating temperature is 500 °C, which is mainly used in the components of aero-engine compressors, such as blades, discs, drums and shafts. It can also be made into special-shaped castings. The working conditions of the parts are as follows: in the annealed state, it can be used for 500 hours below 500 °C and 100 hours below 550 °C and 1000 hours below 450 °C. It can be used for 100 hours under 500 °C in the intensive treatment state. Parts and parts that work at one time below 700 °C.

Similar brands have BT9 (Russia).