Observation of slip bands in the bulk of polycrystals using a combination of DCT and Topotomography

Overview & Synopsis

3D diffraction imaging techniques like X-ray diffraction contrast tomography and Topotomography enable the observation of slip bands at the onset of plastic deformation in polycrystalline materials. Using the previously introduced 6D DCT reconstruction framework local changes in crystal orientation adjacent to these bands can be detected. The combination of both scanning modalities into a joint reconstruction problem with potentially superior spatial resolution and increased angular sensitivity is under investigation.