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- W4316500426 abstract "Abstract The response of a polycrystalline material to a mechanical load depends not only on the response of each individual grain, but also on the interaction with its neighbors. These interactions lead to local, intragranular stress concentrations that often dictate the initiation of plastic deformation and consequently the macroscopic stress–strain behavior. However, very few experimental studies have quantified intragranular stresses across bulk, three-dimensional volumes. In this work, a synchrotron X-ray diffraction technique called point-focused high-energy diffraction microscopy (pf-HEDM) is used to characterize intragranular deformation across a bulk, plastically deformed, polycrystalline titanium specimen. The results reveal the heterogenous stress distributions within individual grains and across grain boundaries, a stress concentration between a low and high Schmid factor grain pair, and a stress gradient near an extension twinning boundary. This work demonstrates the potential for the future use of pf-HEDM for understanding the local deformation associated with networks of grains and informing mesoscale models. Graphical abstract" @default.
- W4316500426 created "2023-01-16" @default.
- W4316500426 creator A5009678713 @default.
- W4316500426 creator A5017976345 @default.
- W4316500426 creator A5037837741 @default.
- W4316500426 creator A5052375254 @default.
- W4316500426 creator A5052623540 @default.
- W4316500426 creator A5072268797 @default.
- W4316500426 date "2023-01-14" @default.
- W4316500426 modified "2023-10-02" @default.
- W4316500426 title "Resolving intragranular stress fields in plastically deformed titanium using point-focused high-energy diffraction microscopy" @default.
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