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Effects of current pulses on the mobility of fast-moving dislocations

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Abstract

Selective etching has been applied to the mobilities of pyramidal dislocations in the {11¯22} 〈11¯23〉 system in Zn single crystals in the quasiviscous region in the simultaneous presence of mechanical treatment and current flow in order to establish the mechanisms whereby current pulses affect metal plasticity. The dislocation dynamics may be related to the current density and mechanical loading, which is examined in relation to the possible current-effect mechanisms. The dynamic retardation constant has been estimated and it has been found that the nonpolar pinch effect and direct force action from the current are decisive.

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Authors and Affiliations

  1. Strength Physics and Materials Science Institute, Siberian Branch, USSR Academy of Sciences, USSR

    L. B. Zuev & V. E. Gromov

Authors
  1. L. B. Zuev
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  2. V. E. Gromov
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Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 8, pp. 5–8, August, 1991.

We are indebted to A. M. Roshchupkin and I. L. Bataronov for discussions and critical comments.

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Zuev, L.B., Gromov, V.E. Effects of current pulses on the mobility of fast-moving dislocations. Soviet Physics Journal 34, 655–657 (1991). https://doi.org/10.1007/BF01103489

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  • DOI: https://doi.org/10.1007/BF01103489

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