Wolfgang LUDWIG MATèIS lab
RESUME
3D synchrotron X-ray diffraction imaging techniques enable unprecedented insight on the multi-scale mechanical behavior of polycrystalline structural materials. The progress made in recent years makes it possible to follow the temporal evolution of the crystalline microstructure in terms of grain shape and orientation (Diffraction Contrast Tomography - DCT), total deformation (Digital Volume Correlation - DVC) and more recently also in terms of spatially resolved elastic strain tensors (scanning-3DXRD) within materials. The analysis of this type of multidimensional diffraction data is very complex: at present, there is no standardized and user-friendly methodology as in the case of EBSD, which is well established and widely used in academic and industrial research. The current project aims to establish such a framework, automating the analysis of four complementary 3D X-ray diffraction imaging techniques, namely DCT, Topotomography (TT), 3DXRD and scanning-3DXRD in order to facilitate the deployment of these techniques in industrial use cases.
CCI LYON, VIBRATECH, THALES, AREVA, VOLVO, RENAULT, MICHELIN, ANNEALSYS, HUTCHINSON, EDF R&D ENERBAT, riber, SKF, EDF, PSA PEUGEOT CITROEN, SAFRAN, CARA, ST MICROELECTRONICS, SEB, Fraunhofer-Gesellschaft, ...