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Materials for Aircraft Engines

ASEN 5063 Aircraft Propulsion Final Report 2015 Materials for Aircraft Engines TAKEHIRO OKURA Contents 1. Overview .. 2 2. Fan Section .. 3 Fan Blade .. 3 Fan Case .. 4 3. Compressor Section .. 5 4. Combustor Section .. 5 5. turbine 6 turbine Blade .. 6 Ni-based superalloys .. 8 6. Shaft .. 9 7. Conclusion .. 10 8. Appendix - compositions of Materials - .. 10 9. References .. 12 1. Overview In 1939, the world s first jet plane flew in the sky in Germany. A jet engine in this jet plane was designed by Dr. Ernst Heinkel, a German Aircraft designer. The basic configuration of jet Engines has not changed up until now, and the engine is composed of an air intake, a compressor or a fan, a combustor or a combustion chamber, a turbine and an exhaust nozzle. (Figure 1) Thereafter, aerodynamic design technology for a compressor and a turbine , cooling technology for turbine blades, and advances in material technology have significantly improved jet engine performance.

There has been a great attention for the combined cycle system to improve power generation. The improvement of the system is known to lead to high fuel efficiency and also to decreasing the carbon emission. For the improvement, the gas turbine entry temperature (TET) should be

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