自60年代以来,钛合金在飞机发动机中得到广泛应用。在工作温度允许的条件下,压气机盘、转子叶片、静子叶片、机匣、蓖齿封严环等均采用钛合金。但在使用中,许多发动机的旋转钛制零件(转子叶片、封严蓖齿等)与静止钛制零件(机匣、静子叶片、封严环等)相互碰撞、磨擦引起钛合金自燃着火,使压气机的零件烧穿烧毁,严重时,火焰还会烧穿内、外涵机匣,导致发动机 Since the 1960s, titanium has been widely used in aircraft engines. In the conditions of working temperature allowed, the compressor disk, rotor blades, stator blades, casing, grate seal ring are used titanium alloy. However, in use, many engine parts of titanium (rotor blades, seal grate teeth, etc.) and stationary titanium parts (casing, stator blades, seal ring, etc.) collide with each other, causing the titanium spontaneous combustion caused by friction Compressor parts burned burn, serious, the flame will burn through the inside, outside the casing, leading to the engine