| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Schmidt, Søren
European Spallation Source
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2020A multiscale study of hot-extruded CoNiGa ferromagnetic shape-memory alloyscitations
- 2020A multiscale study of hot-extruded CoNiGa ferromagnetic shape-memory alloys
- 2019Laue three dimensional neutron diffractioncitations
- 2017Electromechanical Response of Polycrystalline Barium Titanate Resolved at the Grain Scalecitations
- 2017Alloy design as an inverse problem of cluster expansion modelscitations
- 2017Time-of-Flight Three Dimensional Neutron Diffraction in Transmission Mode for Mapping Crystal Grain Structurescitations
- 2017Time-of-Flight Three Dimensional Neutron Diffraction in Transmission Mode for Mapping Crystal Grain Structurescitations
- 2017Time-of-Flight Three Dimensional Neutron Diffraction in Transmission Mode for Mapping Crystal Grain Structurescitations
- 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
- 2015On the deformation twinning of Mg AZ31Bcitations
- 2015On the deformation twinning of Mg AZ31B:A three-dimensional synchrotron X-ray diffraction experiment and crystal plasticity finite element modelcitations
- 2015On the deformation twinning of Mg AZ31B: A three-dimensional synchrotron X-ray diffraction experiment and crystal plasticity finite element modelcitations
- 2014Direct observation of grain boundary migration during recrystallization within the bulk of a moderately deformed aluminium single crystalcitations
- 2014Grain centre mapping - 3DXRD measurements of average grain characteristics.
- 2011Grain-resolved elastic strains in deformed copper measured by three-dimensional X-ray diffractioncitations
- 2011Three-Dimensional Orientation Mapping in the Transmission Electron Microscopecitations
- 2009Structured scintillators for X-ray imaging with micrometre resolutioncitations
- 2009New opportunities for 3D materials science of polycrystalline materials at the micrometre lengthscale by combined use of X-ray diffraction and X-ray imagingcitations
- 2009New opportunities for 3D materials science of polycrystalline materials at the micrometre lengthscale by combined use of X-ray diffraction and X-ray imagingcitations
- 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
- 2009Time Evolution in 3D Metal Microstructures-Recrystallizationcitations
- 2009Time Evolution in 3D Metal Microstructures-Recrystallizationcitations
- 2008A high-spatial-resolution three-dimensional detector array for 30-200 keV X-rays based on structured scintillatorscitations
- 2007Simulations of boundary migration during recrystallization using molecular dynamicscitations
- 2007Simulations of boundary migration during recrystallization using molecular dynamicscitations
- 2007Effects of distributions of growth rates on recrystallization kinetics and microstructurecitations
- 2007Effects of distributions of growth rates on recrystallization kinetics and microstructurecitations
- 2004Simultaneous measurement of the strain tensor of 10 individual grains embedded in an Al tensile samplecitations
- 2004Metal Microstructures in Four Dimensions
Places of action
| Organizations | Location | People |
|---|
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.