Microstructural evolution of an Al-Ge alloy revealed by nano-CT
Description
The dataset represents the microstructural evolution of an AlGe alloy due to heat treatment. It shows morphology changes and reveals grain coarsening and formation of precipitations.
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All images are acquired with an SEM-based nano-CT called XRM-II nanoCT. Aluminum and Germanium are segmented using AVIZO. "Sample_0min" shows an overview scan of the investigated AlGe alloy with a voxel size of 260 nm. Based on this information an ROI is prepared by FIB. The prepared ROI is stepwise annealed at 375° C and the morphology changes are imaged by nano-CT. The four image stacks named "ROI" represent the microstructure after a specific annealing time. The object size is about 60 µm and the voxel size is 60 nm. Al is defined by the grey value 2 and Ge by the grey value 3 (air = 0).
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Funding
Deutsche Forschungsgemeinschaft
HE 7079/4-1