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Open AccessArticle

The Interaction of Biofoulants and Calcareous Deposits on Corrosion Performance of Q235 in Seawater

by Jie Zhang 1,2,3,*, Zhenhua Yu 4, Xia Zhao 1,2,3,*, Xiao Lan 1,2,3, Jiangwei Wang 1, Xianzi Lv 1,2,3, Chao Zhang 1, Jizhou Duan 1,2,3 and Baorong Hou 1,2,3
1
Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266000, China
2
Open Studio for Marine Corrsion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao 266000, China
3
Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266000, China
4
Qingdao Municipal Center for Disease Control and Prevention, Qingdao 266000, China
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(4), 850; https://doi.org/10.3390/ma13040850
Received: 16 November 2019 / Revised: 3 January 2020 / Accepted: 7 February 2020 / Published: 13 February 2020
An understanding of the interaction of calcareous deposits and biofoulants on the corrosion performance of steel during the fouling stage is both interesting and necessary. So, the effects of these factors on Q235 carbon steel were investigated and discussed for 20 weeks under real ocean conditions. The results indicate that calcareous deposits are favorable for the attachment of marine microorganisms. However, macroorganisms prefer adhering directly to the substrate. The generations of calcareous deposits have priority over the biofilm attachment under the condition of cathodic protection. Calcareous deposits can prevent steel against corrosion for four weeks without cathodic protection. View Full-Text
Keywords: carbon steel; marine corrosion; calcareous deposit; cathodic protection; biofouling carbon steel; marine corrosion; calcareous deposit; cathodic protection; biofouling
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MDPI and ACS Style

Zhang, J.; Yu, Z.; Zhao, X.; Lan, X.; Wang, J.; Lv, X.; Zhang, C.; Duan, J.; Hou, B. The Interaction of Biofoulants and Calcareous Deposits on Corrosion Performance of Q235 in Seawater. Materials 2020, 13, 850.

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