High-temperature alloys play a crucial role in aircraft engines, with their significance highlighted in several key areas:

1. Providing Essential Material Properties
   Aircraft engines operate under extreme temperatures and pressures, which demand exceptional material performance. High-temperature alloys exhibit outstanding properties such as high-temperature resistance, strength, toughness, oxidation resistance, and corrosion resistance. These characteristics make them ideal materials for manufacturing critical components in aircraft engines.

2. Supporting Performance Breakthroughs
   High-temperature alloys are vital for advancing aircraft engine performance. The manufacturing of modern aircraft engines requires various high-performance materials. These alloys, with their superior heat and strength capabilities, meet the stringent requirements of engines operating in extreme conditions. For instance, domestic leader Steel Research Group provides essential material support for aircraft engines, enhancing their performance and reliability.

3. Manufacturing Key Components
   In aircraft engines, high-temperature alloys are primarily used to produce critical hot-section components such as combustion chambers, guide blades, turbine blades, and turbine disks. These components endure extreme working conditions, including high temperatures, pressures, and high-speed rotation, necessitating the use of high-performance alloy materials. For example, the GH605 high-temperature alloy is known for its excellent heat and corrosion resistance, making it a common choice for aircraft engine parts.

4. Driving Technological Advancements
   The development of high-temperature alloys is closely linked to advancements in aircraft engine technology. As aviation equipment continues to evolve, the demand for increased thrust-to-weight ratios grows, leading to a greater reliance on high-performance high-temperature alloys. In modern advanced aircraft engines, these materials can account for 40%-60% of the total engine weight. As technology progresses, the performance and selection of high-temperature alloys become critical factors in determining aircraft engine capabilities.

In summary, high-temperature alloys are indispensable in aircraft engines, providing essential material properties, supporting performance advancements, manufacturing critical components, and driving technological progress. With ongoing technological developments, the performance and application of high-temperature alloys are expected to further enhance the evolution of aircraft engines.