|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||Mapping Grain Morphology and Orientations by Laboratory Diffraction Contrast Tomography
||Hrishikesh Bale, Jun Sun, Jette Oddershede, Erik Lauridsen
|On-Site Speaker (Planned)
Recent developments in lab-based X-ray diffraction contrast tomography (LabDCT) technique have extended its capabilities to include full reconstruction of the 3D grain structure, including both grain morphology and crystallographic orientation. With both morphology and orientation, it is possible to extract the full five parameters describing the grain boundary characteristics, opening new possibilities for statistical studies of grain boundaries.
The 3D crystallographic imaging capabilities of LabDCT complements the structural data obtained by traditional absorption-contrast tomography (ACT), e.g. cracks, voids and inclusions, and together the combination of ACT and LabDCT provides unprecedented insight.
We present a selection of LabDCT results with particular emphasis on its non-destructive operation and discuss boundary conditions of the current implementation, point to the future of the technique and discuss ways in which the results can be correlatively coupled to both related characterization techniques and microstructural modelling for better understanding of materials structure evolution in 3D.