School of Materials;
Hebei University of Science and Technology;
Shijiazhuang 050018;
China;
Hebei Key Laboratory of Material Near-Net Forming Technology;
Shijiazhuang 050018;
China;
School of Transportation;
Inner Mongolia University;
Hohhot 010070;
China;
X80 pipeline steel; Dual-phase accelerated cooling; microstructure; corrosion behavior;