Steel rust layers immersed in the South China Sea with a highly corrosive Desulfovibrio strain

doi:10.1038/s41529-022-00304-7

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	Steel rust layers immersed in the South China Sea with a highly corrosive Desulfovibrio strain
	Dong, Xucheng 1,2,3,4; Zhai, Xiaofan 1,2,4,5,6; Zhang, Yimeng 1,2,4; Yang, Jing 1,2,4; Guan, Fang 1,2,4; Duan, Jizhou 1,2,4,5,6; Sun, Jiawen 1,2,3,4; Zhang, Ruiyong 1,2,4; Hou, Baorong 1,2,4,5,6
刊名	NPJ MATERIALS DEGRADATION
	2022-11-11
卷号	6 期号:1 页码:14
DOI	10.1038/s41529-022-00304-7
通讯作者	Zhai, Xiaofan(zhaixf@qdio.ac.cn) ; Duan, Jizhou(duanjz@qdio.ac.cn)
英文摘要	Although it is well known that microbes play a significant role in marine corrosion, few studies have systematically studied the relationship between microorganisms and corrosion products under long-term immersion. In this study, the corrosion characteristics of the rust layer formed on carbon steel immersed in the South China Sea for 5.5 years were investigated using various surface analysis and microbial community analysis techniques. Magnetite (Fe3O4), iron sulfide, and green rust were identified in the inner rust layer. The middle rust layer was composed of maghemite (gamma-Fe2O3), and some Fe3O4 and mackinamite were also detected. The outer rust layer contained several Fe(III)-oxyhydroxides, and it had a large number of fouling organisms attached to it. In all of the rust layers, anaerobic sulfate-reducing bacteria (SRB) were the dominant bacteria, and they may have played a key role in the formation of the corrosion products. One SRB strain (Desulfovibrio bizertensis SY-1) with a highly corrosivity (13.561 mg/cm(2)) was isolated from these rust layers, and its physiological and metabolic characteristics were studied. These results expand the membership of corrosive SRB and establish a better understanding of marine microbiologically influenced corrosion (MIC).
资助项目	Hainan Provincial Joint Project of Sanya Yazhou Bay Science and Technology City[2021CXLH0005] ; Key Research Program of Frontier Sciences, CAS[ZDBS-LY-DQC025] ; Young Elite Scientists Sponsorship Program by CAST[YESS20210201] ; Wenhai Program of the S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao)[2021WHZZB2303] ; National Natural Science Foundation of China[42076044] ; National Natural Science Foundation of China[41706080] ; National Natural Science Foundation of China[41806090] ; Hainan Province Science and Technology Special Fund[ZDYF2021GXJS210]
WOS研究方向	Materials Science
语种	英语
出版者	NATURE PORTFOLIO
WOS记录号	WOS:000881997700002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180353]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Zhai, Xiaofan; Duan, Jizhou
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 168 Wenhai Middle Rd, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100039, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 5.Sanya Inst Ocean Ecoenvironm Engn, Zhenzhou Rd, Sanya 572000, Peoples R China 6.Guangxi Acad Sci, Inst Marine Corros Protect, Nanning 530007, Peoples R China
推荐引用方式 GB/T 7714	Dong, Xucheng,Zhai, Xiaofan,Zhang, Yimeng,et al. Steel rust layers immersed in the South China Sea with a highly corrosive Desulfovibrio strain[J]. NPJ MATERIALS DEGRADATION,2022,6(1):14.
APA	Dong, Xucheng.,Zhai, Xiaofan.,Zhang, Yimeng.,Yang, Jing.,Guan, Fang.,...&Hou, Baorong.(2022).Steel rust layers immersed in the South China Sea with a highly corrosive Desulfovibrio strain.NPJ MATERIALS DEGRADATION,6(1),14.
MLA	Dong, Xucheng,et al."Steel rust layers immersed in the South China Sea with a highly corrosive Desulfovibrio strain".NPJ MATERIALS DEGRADATION 6.1(2022):14.