The effect of electric pulsing treatment (EPT) on the solid-solutioned Al-Mg-Si alloy was investigated in this paper. It was interestingly found that EPT promoted the precipitation of the stable Al₅FeSi phase. Besides, the precipitates pinned the dislocations effectively, thus the dislocations would be remained after the aging process. Moreover, the most interesting phenomenon was that the deformation bands induced by the remained tangled dislocation made the precipitates Mg₂Si from rod-like to globular. Consequently, the superior strength (47.2% higher than T6 temper) alloy nearly without loss of ductility was obtained.

中文翻译：

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电脉冲处理后的Al-Mg-Si合金中的位错与析出物之间的相互作用所产生的优越的机械性能

研究了电脉冲处理（EPT）对固溶Al-Mg-Si合金的影响。有趣地发现，EPT促进了稳定的Al ₅ FeSi相的沉淀。此外，析出物有效地固定了位错，因此在时效过程之后将保留位错。此外，最有趣的现象是，由于残留纠缠的位错而引起的形变带使析出的Mg ₂ Si从棒状变成球状。结果，获得了几乎没有延展性损失的优异强度（比T6回火高47.2％）的合金。