THERMAL-MECHANICAL FATIGUE PROBLEMS IN AEROENGINE COMPONENTS

摘要

The increase of performance of aeroengines demands more severe thermal mechanical loading of on critical components. Laboratory tests under thermal mechanical fatigue (TMF) including missing with creep are needed for better assessment of materials and lifing procedures. Examples are given for single crystal blades, including the degradations of coatings against oxidation and thermal barrier coating, as well as for advanced compressor stages using composite materials.