Corrosion of Q235 steel affected by Pseudodesulfovibrio cashew differed with electron acceptors

被引：1

作者：

Gao, Yao-hua ^{[1
,2
,3
,4
]}

Wu, Jia-jia ^{[1
,2
,3
]}

Zhang, Dun ^{[1
,2
,3
]}

Wang, Peng ^{[1
,2
,3
]}

Wang, Yi ^{[1
,2
,3
]}

Li, Ce ^{[1
,2
,3
,4
]}

Zhu, Li-yang ^{[1
,2
,3
,4
]}

Wang, Wen-kai ^{[1
,2
,3
,4
]}

Zheng, Ri-kuan ^{[1
,2
,3
]}

Sun, Chao-min ^{[1
,2
,3
]}

Sand, Wolfgang ^{[1
,5
]}

机构：

[1] Chinese Acad Sci, Inst Oceanol, Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China

[2] Laoshan Lab, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China

[3] Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[5] Univ Duisburg Essen, Aquat Biotechnol, D-45141 Essen, Germany

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY | 2024年 / 31卷 / 10期

关键词：

Q235; steel; electron acceptors; microbiologically influenced corrosion; P; cashew; Q235(sic); (sic)(sic)(sic)(sic); (sic)(sic)(sic)(sic)(sic); P.cashew; MICROBIOLOGICALLY INFLUENCED CORROSION; SULFATE-REDUCING BACTERIA; RAY PHOTOELECTRON-SPECTROSCOPY; CARBON-STEEL; PSEUDOMONAS-AERUGINOSA; DESULFOVIBRIO-VULGARIS; FORMATE DEHYDROGENASE; STAINLESS-STEEL; MILD-STEEL; IRON;

D O I：

10.1007/s11771-024-5622-7

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Sulfate and nitrate reducing bacteria are important culprits for microbiologically influenced corrosion (MIC) using sulfate and nitrate as electron acceptors, respectively. Sulfate and nitrate hold different standard electrode potentials, which may lead to differences in corrosion, but their effects on corrosion by the same bacteria have not been reported. The corrosion of Q235 steel affected by Pseudodesulfovibrio cashew (P. cashew) in the sulfate and nitrate media under carbon starvation was studied. It was found that sulfate and nitrate did not lead to differences in corrosion under abiotic conditions. However, P. cashew promoted corrosion in both cases, and the consumption of H2 was the main mechanism for MIC. In addition, corrosion was more severe in the sulfate media. The higher corrosivity of P. cashew with sulfate as the electron acceptor is closely related to the higher number of sessile cells in the biofilm, higher bacterial motility, more hydrogen production pathways, and the increased gene expression of enzymes related to energy synthesis. (sic)(sic)(sic)(sic)(sic)(MIC)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) MIC (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic).(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), Pseudodesulfovibrio cashew (P. cashew)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic)(sic) Q235 (sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic).(sic)(sic), P. cashew (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) Q235 (sic)(sic)(sic)(sic), (sic)(sic) P. cashew (sic) H2 (sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic), P. cashew (sic)(sic)(sic)Q235 (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic).

引用

页码：3352 / 3368

页数：17

共 50 条

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