Abstract
The influence of strain on the magnetic and dynamic properties of ARMCO iron has been characterized by Mössbauer spectroscopy and by Nuclear Inelastic Scattering of synchrotron radiation. The Mössbauer spectra, taken in backscattering geometry, reveal that the magnetic texture in these materials is depending on the type of mechanical loading, monotonic or cyclic, respectively. The applicability of Nuclear Inelastic Scattering for the investigation of the dynamic properties of these macroscopic bulk-engineering materials is shown. The so obtained phonon density of states of a monotonically loaded specimen shows slight differences in its shape and spectral features in comparison to the initial state. An influence of dislocations is also reflected in theoretically calculated phonon density of states based on classical molecular dynamics simulations.
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Acknowledgemnents
This work has been supported by the German Research Foundation (DFG) within the SFB/TRR 173 “SPIN + X” and by DESY via experiment No. 11001564. The authors thank Dr. R. A. Brand from the University of Duisburg for his support using the WinNormos Software
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This article is part of the Topical Collection on Proceedings of the International Conference on the Applications of the Mössbauer Effect (ICAME 2017), Saint-Petersburg, Russia, 3–8 September 2017 Edited by Valentin Semenov
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Scherthan, L., Auerbach, H., Deldar, S. et al. Effects of mechanical loading on the magnetic and dynamic properties of engineering materials. Hyperfine Interact 238, 103 (2017). https://doi.org/10.1007/s10751-017-1459-x
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DOI: https://doi.org/10.1007/s10751-017-1459-x