Study on Atmospheric Corrosion Behavior of Q235 Galvanized steel in Substation
Yong Li, Yongliang Ji, Gaolin Wu, Wenjing Yang, Qihui Wang, Xueming Li
Available Online March 2017.
- https://doi.org/10.2991/ifmca-16.2017.83How to use a DOI?
- Hot-dip galvanized steel, Atmospheric corrosion, Corrosion products, Electrochemical technique
- In this paper, the natural exposure corrosion behavior of Q235 galvanized steel in four different substation environment including urban population centers (A), rural settlements (B), industrial park (C) and chemical industrial park (D) are studied by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). In order to analyze the corrosion behavior comprehensively, the Q235 galvanized steel was insolated for 0~300 days. In addition, the corrosion morphology and corrosion products of Q235 galvanized steel were investigated by scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS). Consequently, it is speculated that Zn(OH)2, ZnCO3 and Zn5(CO)3(OH)6 are the main corrosion products of galvanized steel. Moreover, it is found that the current density increase firstly and then reduce with the natural exposure extending. In general, corrosion products adhering to the galvanized steel surface can promote the corrosion resistance effectively and prevent the sample from corrosion.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Yong Li AU - Yongliang Ji AU - Gaolin Wu AU - Wenjing Yang AU - Qihui Wang AU - Xueming Li PY - 2017/03 DA - 2017/03 TI - Study on Atmospheric Corrosion Behavior of Q235 Galvanized steel in Substation BT - Proceedings of the 2016 International Forum on Mechanical, Control and Automation (IFMCA 2016) PB - Atlantis Press SP - 542 EP - 549 SN - 2352-5401 UR - https://doi.org/10.2991/ifmca-16.2017.83 DO - https://doi.org/10.2991/ifmca-16.2017.83 ID - Li2017/03 ER -