1. Mapping strain fields induced in Zr-based bulk metallic glasses during in-situ nanoindentation by X-ray nanodiffraction.
- Author
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Gamcová, J., Mohanty, G., Michalik, Š., Wehrs, J., Bednarčik, J., Krywka, C., Breguet, J. M., Michler, J., and Franz, H.
- Subjects
X-ray diffraction ,SYNCHROTRONS ,AMORPHOUS substances ,DEFORMATIONS (Mechanics) - Abstract
A pioneer in-situ synchrotron X-ray nanodiffraction approach for characterization and visualization of strain fields induced by nanoindentation in amorphous materials is introduced. In-situ nanoindentation experiments were performed in transmission mode using a monochromatic and highly focused sub-micron X-ray beam on 40 µm thick Zr-based bulk metallic glass under two loading conditions. Spatially resolved X-ray diffraction scans in the deformed volume of Zr-based bulk metallic glass covering an area of 40 x 40 µm² beneath the pyramidal indenter revealed two-dimensional map of elastic strains. The largest value of compressive elastic strain calculated from diffraction data at 1 N load was -0.65%. The region of high elastic compressive strains (<-0.3%) is located beneath the indenter tip and has radius of 7 µm. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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