Development of a Versatile Mechanical Testing Device for In Situ
Synchrotron Tomography and Diffraction Experiments

Pelerin, Maxime; King, Andrew; Laiarinandrasana, Lucien; Proudhon, Henry

doi:10.1007/s40192-019-00143-6

Cited by 9 publications

(3 citation statements)

References 25 publications

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“…The in situ test rig Bulky, designed at the Centre des Mate ´riaux, was used for the experiment [see Fig. 2(a) and the work by Pelerin et al (2019) for more details on the stress rig]. The anchoring system has been modified by integrating a quartz tube (8 mm in diameter and 1 mm thick) in order to comply with the DCT geometry, by allowing the detector to be brought as close as 5 mm to the rotation axis [Fig.…”

Section: In Situ Experimental Testingmentioning

confidence: 99%

In situ synchrotron X-ray multimodal experiment to study polycrystal plasticity

Ribart¹,

King²,

Ludwig³

et al. 2023

J Synchrotron Radiat

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The microstructure of polycrystals is known to govern the performance of structural materials. This drives the need for mechanical characterization methods capable of probing large representative volumes at the grain and sub-grain scales. In this paper, the use of in situ diffraction contrast tomography (DCT) along with far-field 3D X-ray diffraction (ff-3DXRD) at the Psiché beamline of Soleil is presented and applied to study crystal plasticity in commercially pure titanium. A tensile stress rig was modified to comply with the DCT acquisition geometry and used for in situ testing. DCT and ff-3DXRD measurements were carried out during a tensile test of a tomographic Ti specimen up to 1.1% strain. The evolution of the microstructure was analyzed in a central region of interest comprising about 2000 grains. Using the 6DTV algorithm, DCT reconstructions were successfully obtained and allowed the characterization of the evolution of lattice rotation in the entire microstructure. The results are backed up by comparisons with EBSD and DCT maps acquired at ESRF-ID11 that allowed the validation of the orientation field measurements in the bulk. Difficulties at the grain boundaries are highlighted and discussed in line with increasing plastic strain during the tensile test. Finally, a new outlook is provided on the potential of ff-3DXRD to enrich the present dataset with access to average lattice elastic strain data per grain, on the possibility of performing crystal plasticity simulations from DCT reconstructions, and ultimately on comparisons between experiments and simulations at the scale of the grain.

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Section: In Situ Experimental Testingmentioning

confidence: 99%

In situ synchrotron X-ray multimodal experiment to study polycrystal plasticity

Ribart¹,

King²,

Ludwig³

et al. 2023

J Synchrotron Radiat

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“…So at present it is not clear which route is the best, and the answer certainly depends on the beamline. The two stress rigs, [37,38].…”

Section: Presentation Of Two Different Stress Rigsmentioning

confidence: 99%

“…Nanox and Bulky, used in the examples presented hereafter (see sections 3 and 4) are briefly shown here, more details can been found in dedicated papers [37,38].…”

Section: Presentation Of Two Different Stress Rigsmentioning

confidence: 99%

In situ 4D mechanical testing of structural materials: The data challenge

Proudhon

Pelerin

King

et al. 2020

Current Opinion in Solid State and Materials Science

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This papers presents recent progress with materials investigations via in situ mechanical testing at the synchrotron, so called 4D experiments. More automated and more integrated stress rigs now allow to produce new kind of data sets to study deformation and fracture of structural materials. Two recent examples are presented, one with a polymer material and another one with a polycrystalline metallic alloy. Challenges with data organisation and storage and automatic analysis are discussed in the view of the upgrade of the main synchrotron sources which will greatly increase the number and size of the future data sets.

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