Heat Resistance Tungsten Alloy for Taihang Aero Engine

Heat resistance tungsten alloy is a kind of alloys which can work long term under the temperature more than 600℃ and definite pressure. It has a series of complicated properties such as excellent hot strength, good anti oxidation and thermal corrosion resistance, good fatigue property and fracture toughness, etc. Heat resistance tungsten alloy has been the irreplaceable key materials for high-temperature components in military and civil gas turbine engine.

The advancement of Taihang aero engine has close relationship with development of heat resistance tungsten alloy High turbine working temperature is the most significant symbol in Taihang aero engine. Improving turbine working temperature is an important measure to improve thrust and increase thrust weight ratio of Taihang aero engine. While the primary factor having influence on the temperature before engine turbine is materials of turbine blade and turntable which have high-temperature resistance. So designers of engine turbine components try their efforts to search a kind of high-temperature resistance materials for turbine turntable and blade. Advanced heat resistance tungsten alloy satisfies with the need of aero engine for materials, and develops rapidly with the advancement of engine.

Heat resistance tungsten alloy powder is a kind of heat resistance tungsten alloy It is indispensable key materials for advanced aero engine turbine turntable. For several years, heat resistance tungsten alloy powder had made great progress, and been utilized in turbine turntable and diversion turntable of Taihang aero engine. The realization of heat resistance tungsten alloy powder applications in aero engine reduces the gap with advanced technology of developed countries in this industry.

The development of Taihang aero engine, also called as WS-10 was begun at the end of 1980’s. The finalization of design was finished at December 28^th, 2005 which had spent 18 years. Taihang aero engine is the first high-performance, high thrust, loading turbofan engine whose intellectual property right is owned by China. Meanwhile, it also fills the gap of advanced turbofan engine in China. Taihan aero engine is the third domestic military turbofan engine which is developed by China Aviation Research Institute 606. The maximum thrust of Taihang aero engine is not more than 12000kg, by adopting high thrust bypass ratio and fully automated digitized control system. At present, Taihang aero engine is mainly equipped in J-10 the third generation high performance fighters in China.


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