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).
Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-31 Cooperative journals: 《腐蚀科学与防护技术》
Abstract： The recent status of research on the corrosion of low-alloy corrosion resistant steel was reviewed with an emphasis on its corrosion performance and passivation behavior, thereafter some relevant corrosion mechanisms were summed up. Then, the research concerning modeling for prediction of the service life for the corrosion resistant steel reinforced concrete structures and the related theoretical basis were introduced in terms of corrosion initiation and corrosion propagation, as well as the unique characteristics of the corrosion resistant steel. Finally, several existing issues about corrosion assessment and life time prediction of the corrosion resistant steel reinforced concrete structures are discussed, and the future trends of investigation in the field were also prospected.
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