Effect of rapid solid-solution induced by electropulsing on the microstructure and mechanical properties in 7075 Al alloy

Electropulsing treatment (EPT) can make the second-phase rapidly dissolve into the matrix in the 7075 Al alloy. Although EPT has the lower degree of supersaturation compared with the traditional solid-solution treatment (SST), the combined effect of the fine precipitates and grains after artificial aging makes the slightly higher strength than that of traditional T6 treatment.