The first stages of fatigue

The local accumulation of fatigue damage is not understood for materials possessing grain and phase boundaries. This is primarily due to the lack of a characterization technique measuring the decisive material parameters (e.g. local strains, dislocation densities, grain boundary character, etc.) nondestructively with high spatial resolution (<1μm).

Therefore, this project aims for establishing an in situ straining device being able to simultaneously deform micron sized samples and measure their microstructure evolution in 3D. The project involves strong European partners and is funded by a ANR-DFG collaboration project.