| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Oddershede, Jette
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (41/41 displayed)
- 2024Grain structure evolution during heat treatment of a semisolid Al-Cu alloy studied with lab-based diffraction contrast tomographycitations
- 20243D strain heterogeneity and fracture studied by X-ray tomography and crystal plasticity in an aluminium alloycitations
- 2023Understanding crystallographic effects on strain localization in a 6016 aluminium alloy under plane strain tension using correlative X-ray lab tomography
- 2023Registration between DCT and EBSD datasets for multiphase microstructurescitations
- 2022Projection-DIC Analysis of Projected 3D data for a 6xxx Aluminium Alloy Under Plane Strain Tension Imaged by in situ Absorption Contrast Tomography
- 2022Relationships between 3D grain structure and local inhomogeneous deformation: A laboratory-based multimodal X-ray tomography investigationcitations
- 2022Relationships between 3D grain structure and local inhomogeneous deformation: A laboratory-based multimodal X-ray tomography investigationcitations
- 2022A CPFEM based theoretical analysis of strains resolved by the microstructural feature tracking methodcitations
- 2022Recent advances of lab-based diffraction contrast tomography – reconstruction speed benchmark testing and validationscitations
- 2018Effect of porosity on the ferroelectric and piezoelectric properties of (Ba 0.85 Ca 0.15 )(Zr 0.1 Ti 0.9 )O 3 piezoelectric ceramicscitations
- 2017Electromechanical Response of Polycrystalline Barium Titanate Resolved at the Grain Scalecitations
- 2017Measured resolved shear stresses and Bishop-Hill stress states in individual grains of austenitic stainless steelcitations
- 2017Measured resolved shear stresses and Bishop-Hill stress states in individual grains of austenitic stainless steelcitations
- 2017On the elusive crystal structure of expanded austenitecitations
- 2016Direct observation of grain rotations during coarsening of a semisolid Al-Cu alloycitations
- 2016Direct observation of grain rotations during coarsening of a semisolid Al-Cu alloycitations
- 2016Elastic interaction between twins during tensile deformation of austenitic stainless steelcitations
- 2016The effect of inter-granular constraints on the response of polycrystalline piezoelectric ceramics at the surface and in the bulkcitations
- 2015Study of 3-D stress development in parent and twin pairs of a hexagonal close-packed polycrystal: Part I - In-situ three-dimensional synchrotron X-ray diffraction measurementcitations
- 2015On the deformation twinning of Mg AZ31Bcitations
- 2015Study of 3-D stress development in parent and twin pairs of a hexagonal close-packed polycrystal: Part II - Crystal plasticity finite element modelingcitations
- 2015On the deformation twinning of Mg AZ31B:A three-dimensional synchrotron X-ray diffraction experiment and crystal plasticity finite element modelcitations
- 2015Deformation-induced orientation spread in individual bulk grains of an interstitial-free steelcitations
- 2015On the deformation twinning of Mg AZ31B: A three-dimensional synchrotron X-ray diffraction experiment and crystal plasticity finite element modelcitations
- 2014Grain centre mapping - 3DXRD measurements of average grain characteristics.
- 2012Extended x-ray absorption fine structure investigation of annealed carbon expanded austenitecitations
- 2012Extended x-ray absorption fine structure investigation of annealed carbon expanded austenitecitations
- 2011In situ measurements of growth rates and grain-averaged activation energies of individual grains during recrystallization of 50% cold-rolled aluminiumcitations
- 2011Grain-resolved elastic strains in deformed copper measured by three-dimensional X-ray diffractioncitations
- 2011Extended X-Ray Absorption Fine Structure Investigation of Carbon Stabilized Expanded Austenite and Carbides in Stainless Steel AISI 316citations
- 2011Extended X-Ray Absorption Fine Structure Investigation of Carbon Stabilized Expanded Austenite and Carbides in Stainless Steel AISI 316citations
- 2010Extended X-ray absorption fine structure investigation of nitrogen stabilized expanded austenitecitations
- 2010Extended X-ray absorption fine structure investigation of nitrogen stabilized expanded austenitecitations
- 2009Measuring the elastic strain of individual grains in a polycrystalline material - extending a micro-scale technique to the nano-regime
- 2009Measuring the elastic strain of individual grains in polycrystalline materials
- 2008Modelling the X-ray powder diffraction of nitrogen-expanded austenite using the Debye formulacitations
- 2008Modelling the X-ray powder diffraction of nitrogen-expanded austenite using the Debye formulacitations
- 2008EXAFS investigation of low temperature nitrided stainless steelcitations
- 2008EXAFS investigation of low temperature nitrided stainless steelcitations
- 2008X-ray characterisation of nanostructured materials
- 2005On the determination of crystallinity and cellulose content in plant fibrescitations
Places of action
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document
Measuring the elastic strain of individual grains in polycrystalline materials
Abstract
3DXRD is not only an excellent tool when it comes to non-destructively determining the positions and orientations of individual grains within the bulk of a polycrystalline material, the experiment can also provide grain resolved elastic strain tensors. To extract this information the program FitAllB, which fits centre-of-mass grain positions, orientations and strain tensors from the experimental far-field 3DXRD data, was developed. The program builds on peaksearch, ImageD11 and GrainSpotter and will eventually be implemented in the Fable GUI. By the use of simulated data the presentation will focus on some of the important aspects you have to take into account in order to determine the strain tensors of the individual grains to the desired accuracy of 10-4. The first thing is how to handle the peak overlaps that will inevitably occur, especially for textured and/or deformed materials. Secondly a careful calibration of the global parameters relating to the experiment (sample-to-detector distance, tilts of detector and sample and beam centre on detector) must be performed. For this purpose the option of fitting the global parameters simultaneously for any number of indexed grains is included in FitAllB. Finally some examples of applying FitAllB to analyze experimental 3DXRD data will be shown. These will include an experiment performed using both a near- and a far-field detector, thus making it possible to improve the grain positions by fitting these against the near-field data. Again this can be done within FitAllB. In addition to the centre-of-mass grain positions, orientations and strain tensors, FitAllB also calculates the relative volumes of the grains based on the peak intensities, so using a tessellation routine a crude 3D map of the elastic strain in the polycrystal can be obtained.