Suppressing or promoting: The effect of coupled electron-heat field on serration behavior

Quantitative assessment of the influence of the Portevin-Le Chatelier effect on the flow stress in precipitation hardening AlMgScZr alloys

“…Thus, the PLC effect detrimentally affects the performance of materials, and should be minimized or restrained. In recent decades, numerous researchers have investigated the influence of different factors on PLC behavior, such as precipitates [24,25], deformation modes [26,27], alloying elements [6,28], grain size [29,30], stacking faults [31], texture [32] and electron-heat field [33]. They explored the influencing mechanisms of these factors on the PLC effect, and restrained or even eliminated the PLC effect by controlling them.…”

Toughening and Hardening Limited Zone of High-Strength Steel through Geometrically Necessary Dislocation When Exposed to Electropulsing

“…Another challenge in EP usage lies in the uniformity of temperature elevation through thickness arising from the electro–contraction effect when a thick workpiece is present. Previous studies have focused on special sample configurations: (i) thin samples, such as those with a thickness ranging from 1 mm [ 8 , 9 ] to 2.64 mm [ 5 ]; and (ii) samples with shrinkage cross-sections, such as the dog bone shape [ 8 , 9 ] or a wider-end shape [ 5 ]. Those sample configurations facilitate the EP design regardless of electro–contraction effect.…”