Abstract
The localization behavior of plastic flow was investigated for a range of pure metals and alloys. The localized plastic flow is regarded as an autowave process having a fixed set of features, i.e. propagation rate, wave number and dispersion law. Using the method of speckle photography, the autowave propagation rate has been determined experimentally for the stage of linear work hardening. Moreover, a dispersion relation of quadratic form and wave number dependencies of phase and group rates have been derived for localized plastic flow autowaves. A detailed quantitative comparison is made of the phase and group rates of the autowaves. This suggests that the two types of wave rates are closely related.
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