Application of Titanium Alloys in Aerospace
1. Aero engine
The aero-engine is the power source of the aircraft. The characteristics of the aero-engine such as light weight, high temperature, corrosion resistance and high strength are the key factors restricting the performance of the engine. Due to its low density, high strength and excellent high temperature oxidation resistance, titanium alloy has become the first choice for aero-engine materials. At present, the titanium alloys used in aero-engines mainly include Ti-6Al-4V (grade 5), Ti-5Al-2.5Sn, Ti-6Al-2Sn-4Zr-2Mo and other alloys. TC4 alloy is a commonly used titanium alloy for aero-engines. It has high strength, good toughness and corrosion resistance, and is one of the main structural materials of aero-engines. The parts where titanium alloys are used in aero-engines mainly include blades, turbine disks, turbines and other components.
2. Aircraft structural parts
Aircraft structural parts are the parts of the aircraft that carry weight, support fuel and loads, and should have high strength, rigidity, fatigue resistance and light weight. Due to its low density, high strength and excellent mechanical properties, titanium alloy has become one of the important materials for aircraft structural parts. At present, the titanium alloys used in aircraft structural parts mainly include Ti-6Al-4V, Ti-6Al-2Sn-4Zr-2Mo, Ti-3Al-2.5V and Ti-6Al-2Sn-4Zr-6Mo and other alloys. Applications of these alloys in aircraft structures include parts such as fuselages, wings, large structures and skins.
3. Satellite payload
The satellite payload is an important part of the satellite, which needs to have the characteristics of light weight, high strength, high temperature stability and corrosion resistance. Due to its low density, high strength, excellent corrosion resistance and high temperature stability, titanium alloy has become the first choice for satellite payload materials. In satellites, titanium alloys are mainly used to manufacture satellite load support structures, antenna brackets, beam supports, and satellite reflectors.
4. Spacecraft thermal control system
Thermal control of spacecraft is an important measure to maintain the stability and normal operation of spacecraft. When the spacecraft enters the atmosphere and the satellite takes time, etc., it will generate strong heat flow, and it will have a high temperature effect on the materials of the spacecraft. Therefore, it is necessary to provide thermal protection for various parts of the spacecraft. As a thermal control material for spacecraft, titanium alloy is widely used in the thermal control system of spacecraft because of its excellent properties such as low density, high strength, corrosion resistance and high temperature resistance. The application of titanium alloys in spacecraft thermal control systems includes the manufacture of heat shields, thermal detectors, thermal control reflectors, etc.
In short, titanium alloy, as an excellent material, is widely used in the aerospace field. With the continuous advancement of science and technology, the application of titanium alloys in the aerospace field will continue to expand, promoting the development of aviation.
