Journal article · Conference paper
The application of in-situ 3D X-ray diffraction in annealing experiments: First interpretation of substructure development in deformed NaCl
Stockholm University1
Department of Physics, Technical University of Denmark2
Neutrons and X-rays for Materials Physics, Department of Physics, Technical University of Denmark3
Lund University4
Autonomous University of Barcelona5
Eberhard-Karls-Universität Tübingen6
Université Paul Sabatier Toulouse III7
In-situ 3D X-ray diffraction (3DXRD) annealing experiments were conducted at the ID-11 beamline at the European Synchrotron Radiation Facility in Grenoble. This allowed us to nondestructively document and subsequently analyse the development of substructures during heating, without the influence of surface effects.
A sample of deformed single crystal halite was heated to between 260-400 °. Before and after heating a volume of 500 by 500 by 300 μm was mapped using a planar beam, which was translated over the sample volume at intervals of 5-10 μm in the vertical dimension. In the following we present partially reconstructed orientation maps over one layer before and after heating for 240min at 260 °.
Additional small syn-heating "maps" over a constrained sample rotation of 12-30°. The purpose of this was to illuminate a few reflections from 1 or 2 subgrains and follow their evolution during heating. Preliminary results show that significant changes occurred within the sample volume, for which, surface effects can be excluded.
Results show a number of processes, including: i) change in subgrain boundary misorientation angle and ii) subgrain subdivision into areas of similar lattice orientation with new subgrain boundary formation. These results demonstrate that 3DXRD coupled with in-situ heating is a successful non-destructive technique for examining real-time postdeformational annealing in strongly deformed crystalline materials with complicated microstructures. © (2012) Trans Tech Publications, Switzerland.
Language: | English |
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Publisher: | Trans Tech Publications Ltd |
Year: | 2012 |
Pages: | 461-466 |
Proceedings: | 4th International Conference on Recrystallization and Grain Growth |
ISSN: | 16629752 , 02555476 , 22976620 and 14226375 |
Types: | Journal article and Conference paper |
DOI: | 10.4028/www.scientific.net/MSF.715-716.461 |
ORCIDs: | Schmidt, Søren |
Annealing Crystalline materials Grain growth Heating Recrystallization (metallurgy) Sodium chloride Three dimensional Titanium sheet X ray diffraction