Skip to Main content Skip to Navigation
Journal articles

Incipient Bulk Polycrystal Plasticity Observed by Synchrotron In-Situ Topotomography

Abstract : In this paper, we present a comprehensive 4D study of the early stage of plastic deformation in a polycrystalline binary AlLi alloy. The entire microstructure is mapped with X-ray diffraction contrast tomography, and a set of bulk grains is further studied via X-ray topotomography during mechanical loading. The observed contrast is analyzed with respect to the slip system activation, and the evolution of the orientation spread is measured as a function of applied strain. The experimental observations are augmented by the mechanical response predicted by crystal plasticity finite element simulations to analyze the onset of plasticity in detail. Simulation results show a general agreement of the individual slip system activation during loading and that comparison with experiments at the length scale of the grains may be used to fine tune the constitutive model parameters.Dataset 10.5281/zenodo.1412401
Document type :
Journal articles
Complete list of metadatas

Cited literature [43 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01916287
Contributor : Laboratoire Mateis <>
Submitted on : Friday, October 23, 2020 - 2:16:10 PM
Last modification on : Monday, October 26, 2020 - 1:56:37 PM

File

Materials_11_2018.pdf
Publisher files allowed on an open archive

Identifiers

Citation

Henry Proudhon, Nicolas Guéninchault, Samuel Forest, Wolfgang Ludwig. Incipient Bulk Polycrystal Plasticity Observed by Synchrotron In-Situ Topotomography. Materials, MDPI, 2018, 11 (10), pp.2018-1-2018-18. ⟨10.3390/ma11102018⟩. ⟨hal-01916287⟩

Share

Metrics

Record views

161

Files downloads

26