Numéro |
J. Phys. IV France
Volume 110, September 2003
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Page(s) | 577 - 582 | |
DOI | https://doi.org/10.1051/jp4:20020755 |
J. Phys. IV France 110 (2003) 577
DOI: 10.1051/jp4:20020755
Metals behavior under passage of impulse electric current
G. Stepanov1, A. Babutsky1 and L. Krushka21 Institute for Problems of Strength, National Academy of Sciences of Ukraine, Kiev, Ukraine
2 Military University of Technology, Warsaw, Poland
Abstract
Results of experiments on stress relaxation, recovery of plasticity, and deceleration of crack propagation under cyclic loading
in structural metals under passage of a high-density electric current impulse are presented. Essential influence of an electric
current impulse on these processes follows from the results. It cannot be explained by electric current thermal effect only.
Simple model of an electric current impulse action based on the effect of the electron cloud drift on average velocity of
dislocation displacement and possibility to overcome potential barriers on their paths can explain results of experiments.
© EDP Sciences 2003