Understanding the effect of topology on the strain distribution of a new additive manufactured Al alloy by coupling X-ray nano-tomography an

Additive manufacturing of metallic alloys is a new innovative manufacturing process, which allows producing peculiar out-of equilibrium microstructures. More fundamental knowledge is needed to facilitate its implementation in the industry. The aim of this study is to investigate the effect of the topology of microstructures produced by Laser Beam - Powder Bed Fusion (LB-PBF) on their mechanical behavior. A focus will be made on the characterization of the influence of the microstructure's meso-scale architecture on the strain localization, which is only visible at the grain-scale with a resolution of at least 50nm. Therefore a 3D multi-scale strain characterization technique is necessary. The 3D X-Ray nano-tomography imaging provided at ID16B is reaching a voxel size of up to 25nm^3 and fast acquisition time. Coupled with Digital Volume Correlation, the resulting volumes will allow us to measure the local strain field variations on samples with different process parameters.