4D GRAIN GROWTH STUDY BY LABORATORY DIFFRACTION CONTRAST TOMOGRAPHY
Using a novel laboratory diffraction contrast tomography (LabDCT) a non destructive, 4D study was conducted to investigate the 3D grain structural evolution during grain growth. Information of both the morphology and crystallographic orientation for the grains is obtained. The capability of applying LabDCT for detailed study of grain growth is demonstrated, promising to provide the necessary 4D experimental evidences for further understandings of grain growth.