Abstract Scope |
An integrated microstructural modeling approach, and ensuring the handshake between modeling and experimentation, relies on adequate experimental statistics. Furthermore, the simultaneous improvements in computing power and characterization techniques have opened up new possibilities in 4D analysis, beyond established 2D microstructural methods. Here we present the x-ray based technique of diffraction contrast tomography performed on a laboratory X-ray microscope. LabDCT is attractive in its ability to non-destructively produce detailed 3D grain maps(morphology and orientation) over large volumes of material up to 8 mm3 and beyond(when stitching multiple volumes), containing hundreds of grains, in a matter of hours. Such experimental data is essential for improving and validating simulation volumes. Additionally, due to its non-destructive operation, LabDCT enables tracking the evolution of structure through processes such as annealing or grain-growth, again providing a complement to analogous models. The technique and examples will be presented highlighting the use of large volume, large grain statistics. |