Up to now, there are already thousands of titanium alloy Turbo and exhaust valves of steam turbine in actual use. Manufactured by the General Electric company in Boeing 787 aircraft, γ--TiAl alloys have been used in a gas turbine engine. Application of titanium alloy in low pressure turbine blades is gradually achieved. Although there are many excellent properties of TiAl alloys, but remains insufficient in some aspects of the alloy, as is brittle at room temperature, lack of sufficient ductility, deformation, abrasion resistance ability is poor, and high temperatures (≥ 800 ̊ c) antioxidant capacity is low. How to improve the properties of TiAl alloys, is that it can be successfully applied to industrial production must be considered and addressed before the central topic.
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