Abstract
A novel method which provides accurate analysis of individual grains during deformation has been developed by amalgamating X-Ray diffraction (XRD) microscopy with grain boundary tracking (GBT). XRD and GBT are both non-destructive in-situ analysis techniques for characterizing bulk materials, which can be carried close to the point of fracture of metals. DAGT provides accurate information about individual grain orientations from near field XRD analysis, whilst the GBT accesses 1 micron level analysis of grain morphologies in 3-dimensions. XRD employed an X-ray pencil beam to analyze a specimen of Al-3mass%Cu before and after deformation. The morphology of the grains were determined by computer tomography (CT) imaging and liquid metal wetting, after which GBT provided an accurate description of the position and morphology of the grains. The integrated technique, DAGT, identified which diffraction spots were related to which grain, making it possible to describe misorientation between grains.
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