Investigation of plastic yielding in near-micrometer grain size aluminum using synchrotron microdiffraction

C.L. Zhang, A. Godfrey*, W.Q. Gao, Y.B. Zhang, G.L. Wu, W. Liu, R.Q. Xu, D. Juul Jensen

*Corresponding author for this work

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Abstract

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.
Original languageEnglish
Article number012056
JournalI O P Conference Series: Materials Science and Engineering
Volume580
Issue number1
Number of pages6
ISSN1757-8981
DOIs
Publication statusPublished - 2019
Event40th Risø International Symposium on Material Science: Metal Microstructures in 2D, 3D, and 4D - Roskilde, Denmark
Duration: 2 Sep 20196 Sep 2019

Conference

Conference40th Risø International Symposium on Material Science: Metal Microstructures in 2D, 3D, and 4D
Country/TerritoryDenmark
CityRoskilde
Period02/09/201906/09/2019

Bibliographical note

GA no. 788567

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