Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-31 Cooperative journals: 《中国腐蚀与防护学报》
Abstract: The microstructure and mechanical properties of the seawater corrosion resistant rebar steel 00Cr10MoV was investigated, while its corrosion resistance was studied by salt-spray test, periodical immersion test, electrochemical impedance spectroscopy and polarization curve measurements. The results show that the microstructure of 00Cr10MoV composed of ferrite and bainite with yield strength above 400 MPa. Compared with 20MnSiV, 00Cr10MoV had excellent corrosion resistance in simulated marine environment. The charge- transfer resistance of 00Cr10MoV was 1.37×105 Ω·cm2, 100 times more than 20MnSiV. Its corrosion products consist of major phases α-FeOOH, β-FeOOH and γ-FeOOH, minor phase Fe3O4 and trace phases Na3CrCl16 and Fe+3O(OH, Cl).