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

doi:10.1088/1757-899x/580/1/012056

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

Research output: Contribution to journal › Conference article › Research › peer-review

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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 language	English
Article number	012056
Journal	I O P Conference Series: Materials Science and Engineering
Volume	580
Issue number	1
Number of pages	6
ISSN	1757-8981
DOIs	https://doi.org/10.1088/1757-899x/580/1/012056
Publication status	Published - 2019
Event	40th Risø International Symposium on Material Science: Metal Microstructures in 2D, 3D, and 4D - Roskilde, Denmark Duration: 2 Sept 2019 → 6 Sept 2019

Conference

Conference	40th Risø International Symposium on Material Science: Metal Microstructures in 2D, 3D, and 4D
Country/Territory	Denmark
City	Roskilde
Period	02/09/2019 → 06/09/2019

Bibliographical note

GA no. 788567

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10.1088/1757-899x/580/1/012056Licence: CC BY

FulltextFinal published version, 1.26 MBLicence: CC BY

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M4D: Metal Microstructures in Four Dimensions
Juul Jensen, D. (PI) & Hede, L. G. (Other)
01/10/2018 → 30/09/2023
Project: Research

Cite this

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title = "Investigation of plastic yielding in near-micrometer grain size aluminum using synchrotron microdiffraction",

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.",

author = "C.L. Zhang and A. Godfrey and W.Q. Gao and Y.B. Zhang and G.L. Wu and W. Liu and R.Q. Xu and {Juul Jensen}, D.",

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AU - Zhang, C.L.

AU - Godfrey, A.

AU - Gao, W.Q.

AU - Zhang, Y.B.

AU - Wu, G.L.

AU - Liu, W.

AU - Xu, R.Q.

AU - Juul Jensen, D.

N1 - GA no. 788567

PY - 2019

Y1 - 2019

N2 - 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.

AB - 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.

U2 - 10.1088/1757-899x/580/1/012056

DO - 10.1088/1757-899x/580/1/012056

M3 - Conference article

SN - 1757-8981

VL - 580

JO - I O P Conference Series: Materials Science and Engineering

JF - I O P Conference Series: Materials Science and Engineering

IS - 1

M1 - 012056

T2 - 40th Risø International Symposium on Material Science: Metal Microstructures in 2D, 3D, and 4D

Y2 - 2 September 2019 through 6 September 2019

ER -

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

Abstract

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Projects

M4D: Metal Microstructures in Four Dimensions

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