Due to the characteristics of low density and high strength at high temperature, the application of c-t-i Al alloy in automotive materials has attracted people's attention. The c-t-ial alloy exhaust valve has successfully passed the demanding long period engine tests. At the end of 1997, the cover plate and air seal ring of the turbine impeller made of single-phase c-t-i Al alloy passed the engineering demonstration. The main applications of titanium alloy in advanced jet turbine engines are:
(1) the specific stiffness of ti-al alloy is about 50% higher than that of common engine materials, which can be used to make parts of frame, seal support, casing, baffle, turbine blade and nozzle area.
(2) titanium aluminum alloy has good creep resistance in 600~750e, which can partly replace the high-density nickel base alloy.
(3) good combustion resistance makes it possible to replace the denser and expensive titanium-based flame retardant alloy.
In addition to its applications in the aerospace and automotive industries, titanium and aluminum alloys are increasingly being used in the chemical industry, biomedical materials such as hip replacement implants, the offshore industry and the energy industry. Titanium and aluminum alloys are also increasingly in demand for sporting goods and consumer goods such as golf clubs, bicycles or jewelry, and have become a part of everyday life. In short, due to its excellent properties, the application and development of titanium aluminum alloy have a broad prospect.
