The performance level of turbine blades is a crucial indicator of an engine's sophistication. Aero engines are highly complex and precise thermodynamic machines, the heart of an aircraft, accounting for 20%-30% of the total engine value. Within aero engines, blades are special components-numerous, complex in shape, demanding in requirements, and extremely difficult to manufacture-making them a key aspect of engine production.
Because the turbine in an aero engine is both a self-sustaining component, driving the compressor through its own rotation to achieve self-sustaining operation, and a primary power-generating component, outputting mechanical energy through its own rotation, the importance of the turbine and its blades is self-evident. Furthermore, turbine blades operate under the harshest conditions in an engine, needing to withstand high-temperature exhaust erosion and temperature fluctuations, with the working blades also enduring centrifugal forces at high speeds.
Therefore, the most important and also the most difficult blade to manufacture in an engine is the turbine blade. Materials technology is key to improving the temperature resistance of turbine blades, thereby enhancing the overall performance of the engine.
