Turbine blades are more susceptible to operating damage primarily due to their exposure to high temperatures. In a jet engine, the turbine blades are located downstream of the combustion section, where they are subjected to extreme heat generated during fuel combustion. This high-temperature environment can cause materials to weaken, erode, or even melt if not designed to withstand such conditions.
The high-temperature exposure not only affects the material integrity of turbine blades but can also lead to thermal fatigue and creep over time, ultimately compromising their performance and lifespan. In contrast, compressor blades generally operate at lower temperatures and are not exposed to the same levels of thermal stress, which helps to preserve their structural integrity and longevity. Therefore, the unique operating conditions of turbine blades, particularly their high-temperature exposure, significantly contribute to their susceptibility to damage compared to compressor blades.