Conference paper · Journal article
Investigation of plastic yielding in near-micrometer grain size aluminum using synchrotron microdiffraction
The onset of plastic yielding has been studied in samples of aluminum with near-micrometer average grain size using in situ tensile loading combined with synchrotron radiation. A white-beam Laue 3D micro-diffraction technique was used allowing the collection of diffraction signal from a volume with a resolution of 1 μm in all three dimensions.
The orientation data obtained from the micro-diffraction are used to estimate the local variation in geometrically necessary dislocation density, and correction factors are suggested for voxels where neighbors are missing in either one or two dimensions. The results demonstrate a considerable heterogeneity in deformation in the early stages of plastic deformation.
Language: | English |
---|---|
Year: | 2019 |
Pages: | 012056 |
Proceedings: | 40th Risø International Symposium on Material Science: Metal Microstructures in 2D, 3D, and 4D |
ISSN: | 1757899x and 17578981 |
Types: | Conference paper and Journal article |
DOI: | 10.1088/1757-899x/580/1/012056 |
ORCIDs: | Zhang, Y.B. and Juul Jensen, D. |