Integrating in-situ multi-modal characterizations with signatures to investigate localized deformation
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Shadle, D. J.↗
Engineering topics
Shadle, D. J.
Publications and source records attributed to Shadle, D. J..
Using real-time data analysis to conduct next-generation synchrotron fatigue studies
Next-generation experimental techniques, like high energy X-ray diffraction microscopy (HEDM), usher in new opportunities to collect the grain-scale data necessary for understanding the evolving processes that drive fatigue failure. In this study, we present a framework for monitoring the evolution of a deforming polycrystal, in real-time, by applying principal component analysis (PCA) to raw X-ray diffraction image data. We applied this framework to inform in-situ HEDM measurements of a cyclically loaded Inconel-718 superalloy. Further, we discovered correlations between PCA of the diffraction data and the physical processes in the polycrystal. Lastly, we discuss extending this framework in future HEDM fatigue studies.
36 MATERIALS SCIENCE↗