The effect of high-current-density electro-pulsing on dislocation structures in a coplanar double-slip-oriented Cu single crystal that had previously been fatigued was reported. The results showed that, after electro-pulsing, vein structures were transformed to cell structures with some dark regions. It was proposed that the thermal compressive stress caused by electro-pulsing activates a coplanar slip system and leads to strong dislocation interactions between primary and coplanar slip systems, thereby forming cell structures. Partial recrystallization may occur by electro-pulsing, leading to the appearance of some dark regions.

The Effect of Electropulsing on Dislocation Structures in [233] Coplanar Double-Slip Oriented Fatigued Copper Single Crystals. S.H.Xiao, J.D.Guo, S.X.Li: Philosophical Magazine Letters, 2002, 82[11], 617-22