 This study examined the behaviour of dislocation structures during thermomechanical processing of a single crystal of aluminum. The researchers used dark-filled X-ray microscopy to image the dislocation structure over a large area and then used computer vision techniques to analyse the data. They found that the dislocations remained organised into straight lines with a predominant orientation and that the dislocation boundaries were oriented along specific crystallographic planes. Additionally, they discovered that the dislocations had a lower density than expected and that the misorientations near the dislocation boundaries were significantly smaller than predicted. This suggests that there may be additional factors involved in the stabilisation of the dislocation boundaries.