Creep-fatigue behavior of a new generation Ni-base superalloy for aeroengine usage

Aeroengine components are often affected by high temperature creep-fatigue mechanisms which result in cyclic crack propagation. Some of these components, like turbine and compressor disks, have some geometrical features that act as stress concentration regions with a strong impact in the crack front geometry. Also, recent investigations show that shot peening may have an important influence for crack arresting or even in the delaying of short...