Surface Characterization of X80 Steel and Its Aspergillus Terreus Induced Corrosion Behavior in Marine Environment

X80 steel is an important engineering material for ship structures. The corrosion of X80 generally exists in various environments, especially in the marine environment. However, the corrosion behaviors of X80 in marine microbial Aspergillus terreus environment have not been well-addressed. In this paper, the microstructure of pipeline steel X80 was investigated by EBSD. Then, the Aspergillus terreus was added to the simulated seawater, and the electrochemical corrosion behavior of X80 was continuously tested for 21 days. The morphologies after corrosion were characterized by SEM. The products before and after corrosion were analyzed by XRD. The corrosion mechanism of pipeline steel X80 in the Aspergillus terreus concentrated environment was clarified.