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Hydrogen vibrations in austenitic stainless steel

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Abstract.

The vibrational modes of hydrogen in fcc Fe-25Cr-20Ni stainless steel with a hydrogen content of 0.33 at.% were studied by neutron spectroscopy. Hydrogen doping was performed at 810 K in a hydrogen-gas atmosphere of 190 bar. Neutron spectra were taken at 2 K and 77 K with the spectrometer IN1-BeF (ILL, Grenoble). The spectra show the fundamental hydrogen vibration at ≈130 meV and the second harmonics at ≈260 meV. The frequencies are higher than in other fcc hydrides. In spite of the cubic symmetry of the octahedral hydrogen positions and the low hydrogen content, the inelastic hydrogen peak has a relatively large width and an asymmetric shape.

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Authors and Affiliations

  1. Hahn-Meitner-Institut, Glienicker Str. 100, 14109 Berlin, Germany, , , , , , DE

    S.A. Danilkin

  2. Ecole Nationale Superieure des Mines de Saint-Etienne, 42023 Saint-Etienne, France, , , , , , FR

    D. Delafosse & T. Magnin

  3. Darmstadt University of Technology, 64287 Darmstadt, Germany, , , , , , DE

    H. Fuess & H. Wipf

  4. Institute for Metal Physics, 252142 Kiev, Ukraine, , , , , , UA

    V.G. Gavriljuk

  5. Institut Max von Laue – Paul Langevin, 38042 Grenoble, France, , , , , , FR

    A. Ivanov

Authors
  1. S.A. Danilkin
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  2. D. Delafosse
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  3. H. Fuess
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  4. V.G. Gavriljuk
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  5. A. Ivanov
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  6. T. Magnin
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  7. H. Wipf
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Additional information

Received: 13 July 2001 / Accepted: 11 October 2001

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ID="*"Corresponding author. (Fax: +49-30/8062-2999, E-mail: danilkin@hmi.de)

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Danilkin, S., Delafosse, D., Fuess, H. et al. Hydrogen vibrations in austenitic stainless steel . Appl Phys A 74 (Suppl 1), s992–s994 (2002). https://doi.org/10.1007/s003390101173

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  • DOI: https://doi.org/10.1007/s003390101173

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