Microvoid distribution and microstructure of as-printed state and other three states (IMAGE)
Caption
(a1-d1) 3D visualization images of the quasi in situ XRT test sample evaluating the size and spatial distribution of microvoids. (a2-d2) Reconstructed orientation maps of prior β grains based on the EBSD results of the α phase revealing the change in the size and morphology of the prior β grains. (a3-d3) Inverse pole figures (IPF) of the α phase indicating the size and orientation distribution of α laths and colonies. (a4-d4) STEM micrographs showing the size and distribution of the α/α′ laths and β phases. Based on several systematic studies, the Net-AM microstructure is ultimately obtained after the NAMP technique.
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IMR
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