Due to the characteristics of low density and high temperature strength, 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 cycle engine test. At the end of 1997, the turbine impeller cover disc and air seal made of single-phase c-t-i Al alloy passed the engineering demonstration. The main applications of titanium and aluminum alloy in advanced jet turbine engines are:
(1) the specific stiffness of titanium and aluminum alloy is about 50% higher than that of common engine materials, which can be used to make parts in the frame, seal support, casing, baffle, turbine blade and nozzle area.
(2) titanium aluminum alloy has good creep resistance in 600~750e, which can partially replace high-density nickel base alloy.
(3) the good combustion resistance makes it possible for ti - al alloy to replace the dense and expensive ti - based flame retardant alloy.
In addition to its applications in the aerospace and automotive industries, titanium and aluminum alloys are also increasingly used in the chemical industry, biomedical materials such as human hip implants, offshore industries, and energy industries. In addition, titanium and aluminum alloys are increasingly in demand in sports goods and consumer goods (such as golf clubs, bicycles or jewelry) and have become a part of daily life. In short, because of the excellent properties of ti - al alloy, its application and development prospects are broad.
