3D Crystallographic and morphological analysis of coarse martensite: Combining EBSD and serial sectioning

This investigation combines EBSD analysis with serial sectioning to allow for direct, quantitative investigations into the 3D morphology and 3D crystallography of coarse martensite crystals formed in HSLA-100 steel. It is shown how the 3D crystallography can be represented both qualitatively within the 3D reconstructions, and quantitatively by constructing a crystallographic interface normal distribution (CIND). The CIND indicates that the coarse martensite crystals display four distinct facets, of which the specific crystallographic directions are determined for the three largest facets.