In-situ tensile microtomography of crack nucleation and meso-scale deofrmation mechanics in Ni-based alloy Inconel 718

Zusammenfassung

Inconel 718 is an alloy used in critical components in the aero-engine industry and energy sector that has high performances characteristics at high temperature and load. Digital Volume Correlation (DVC) will be employed as a primary analysis tool, using carbide precipitates in the microstructure as "trackers", to compute the macroscopic strain tensor and elucidate the meso-scale deformation mechanics, and particularly cracks that nucleate within the precipitates themselves.