Abstract
The deformation behavior of mono- and polycrystalline aluminum under tension with application of different modes of current is studied It is shown that the deformation behavior of a single crystal under single current pulses is characterized by hardening and that of a polycrystal is characterized by softening at simultaneous growth of the elongation before failure in both materials The deformation mechanism depends on the mode of the current and on the microstructure. The relative contribution of the electroplastic effect into lowering of the flow stresses is higher than that of the thermal effect of the current.
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