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Investigations on the cold-work peak of hydrogen in iron by means of the magnetic after-effect

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Abstract

The magnetic after-effect of hydrogen-charged iron was investigated in the temperature range between 77 and 200 K. The hydrogen cold-work peak, known so far only from internal friction measurements, has been observed at about 130 K together with a less pronounced relaxation peak at 80 K. The activation energy of ∼0.29 eV, determined for the cold-work peak, is explained by a thermally activated motion of dislocations, the cores of which are closely decorated by a condensed atmosphere of hydrogen atoms.

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Author notes

  1. R. Martinez

    Present address: Universidad de Granada, (Spain)

Authors and Affiliations

  1. Institut für Physik, Max-Planck-Institut für Metallforschung, D-7000, Stuttgart

    R. Martinez, F. Walz & H. Kronmüller

Authors
  1. R. Martinez
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  2. F. Walz
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  3. H. Kronmüller
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Martinez, R., Walz, F. & Kronmüller, H. Investigations on the cold-work peak of hydrogen in iron by means of the magnetic after-effect. Appl. Phys. 7, 107–112 (1975). https://doi.org/10.1007/BF00884219

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  • DOI: https://doi.org/10.1007/BF00884219

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