Corrosion Protection of Nano-Silica Powder Coatingon Artificial Seawater

Abstract:

Sea water resources are extensive and can be used to extinguish fires, but their corrosiveness is a major problem. Using the method of electrochemical workstation, the electrochemical corrosion behavior of aluminum sheet in artificial sea water solution and silica-coated artificial seawater was studied; by analyzing the surface morphology, polarization curve and electrochemical impedance spectroscopy, the electrochemical corrosion behavior of aluminum sheets under different immersion times and different immersion media is obtained. The conclusion is that the coating of nanosilica powder has a certain corrosion protection effect on artificial seawater.

• Periodical: Key Engineering Materials (Volume 904)
• Pages: 519-524
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.904.519
• Online since: November 2021
• Authors: Gui Yun Zhang, Yong Wang, Tian Wei Zhang*, Chen Yu Zhao
• Keywords: Artificial Sea Water, Corrosiveness, Dry Water, Electrochemistry

References

[1] Ruan Jun, Nie Guonian,Nie Songlin, Hu Zhiwei, Design and Experimental Investigation of Seawater Axial Piston Pump for Water-mist Fire Suppression System on Shipboard, J. CHINESE HYDRAULICS & PNEUMATICS. 04 (2010) 75-78.

[2] Wang Jinhui. Experimental study on the effectiveness of seawater fog fire extinguishing, D. Anhui University of Science and Technology. (2005).

[3] Du Conghao, Bai Xiuqin, Research Progress on Corrosion and Wear of Typical Metal Materials under Marine Environment, J. LUBRICATION ENGINEERING. 46 (2021) 121-133.

[4] Zhang Tianwei, Zhang Cunwei, Liu Hao, Han Zhiyue. Experimental investigation of novel dry liquids with aqueous potassium Solution @ Nano-SiO2 for the suppression of liquid fuel fires: Preparation, application, and stability. J. Fire Safety Journal, 115 (2020).

DOI: 10.1016/j.firesaf.2020.103144

[5] Peng Wencai. Research on the corrosion performance of aluminum alloy in seawater, D. Hunan University. (2010).

[6] Ministry of Public Security of the People's Republic of China. Foam Extinguishing Agent., GB 15308-2006. (2006).

[7] Zhou Ying, Ma Xiaolu, Gao Shun, Determination of Corrosion Rate of Magnesium Electrode Material by Tafel Extrapolation Method, J. Science and Technology Outlook. 26 (2016) 88.

[8] Ouyang Yun, Zhu Yan, Liao Liuzhen, Preparation and Characterization of Anticorrosive Microcapsules, J. Materials protection. 53 (2020) 95-99.

[9] Cui Xia, Zhou Xianliang, Ouyang Delai, Song Longfei, Liu Yang, Chen Ling, Effect of Cl~-concentration on the electrochemical corrosion behavior of SiC_P/Al composites, J. Acta Materiae Compositae Sinica. 33 (2016) 2569-2575.