<p>To improve the comprehensive performance of Incoloy825/X80 composite plates, pulse current electroplastic experiments were carried out on Incoloy825/X80 hot-rolled composite plates at different current densities (22, 26, 30&#xa0;A/mm²) and various times (2, 5, 10, 15&#xa0;minutes). The composite plate cross-section morphology, microstructure, and mechanical properties under different conditions were analyzed using a scanning electron microscope, electron backscatter diffraction, transmission electron microscope, and tensile testing machine. The results showed that with the increase of current density and processing time, the tensile strength of the composite plate first increased and then decreased. The recovery and recrystallization degree of the matrix were analyzed. Eventually, after pulse current treatment at 26&#xa0;A/mm² and 10&#xa0;minutes, the intermetallic compounds were formed. It led the Incoloy825/X80 pipeline steel-clad plates to have excellent comprehensive performance, with an elongation of 43&#xa0;pct and a tensile strength of 733&#xa0;MPa. The hardness of the composite interface increased gradually from the Incoloy825 layer to the X80 layer, and the nanoindentation showed that the indentation recovery rates were 10.08, 7.84, and 6.31&#xa0;pct for the Incoloy825 layer, the composite interface, and the X80 layer, respectively. This finding has the potential to significantly enhance the effectiveness of post-rolling procedures applied to composite plates, leading to reduced manufacturing expenses.</p> Graphical Abstract <p></p>