Where does the most wear occur on a turbine engine?

The most wear in a turbine engine occurs in the turbine and exhaust section due to the extreme conditions these components face during operation. In the turbine section, temperatures can reach very high levels, leading to thermal stress and material degradation. The turbine blades and nozzles are subjected to significant mechanical loads and hot gas flow, which can result in erosion, oxidation, and thermal fatigue over time.

Additionally, the exhaust section experiences high-pressure and high-temperature exhaust gases, which can exacerbate wear through exposure to corrosive elements. The combination of high temperatures, pressures, and the corrosive nature of combustion byproducts contributes to the significant wear and tear in the turbine and exhaust area, making it the most critical region for maintenance and inspection in a turbine engine. Other areas, such as the compressor section or fuel control unit, do experience wear but not to the same extent as the turbine and exhaust section.