Mechanism underlying the acceleration of pitting corrosion of B30 copper–nickel alloy by Pseudomonas aeruginosa
Despite its excellent corrosion resistance, B30 copper–nickel alloy is prone to pitting, particularly when exposed to microorganisms. The mechanism underlying the acceleration of pitting in this alloy is not fully understood. In this study, the acceleration of pitting corrosion in B30 copper–nickel...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-04-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2023.1149110/full |
| _version_ | 1797838822147358720 |
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| author | Huan Li Mingxian Sun Min Du Zhenxu Zheng Li Ma |
| author_facet | Huan Li Mingxian Sun Min Du Zhenxu Zheng Li Ma |
| author_sort | Huan Li |
| collection | DOAJ |
| description | Despite its excellent corrosion resistance, B30 copper–nickel alloy is prone to pitting, particularly when exposed to microorganisms. The mechanism underlying the acceleration of pitting in this alloy is not fully understood. In this study, the acceleration of pitting corrosion in B30 copper–nickel alloy caused by a marine microorganism named Pseudomonas aeruginosa (P. aeruginosa) was investigated using surface analysis and electrochemical techniques. P. aeruginosa significantly accelerated the pitting in B30 copper–nickel alloy, with a maximum pitting depth of 1.9 times that of the abiotic control and a significant increase in pitting density. This can be attributed to extracellular electron transfer and copper–ammonia complex production by P. aeruginosa, accelerating the breakdown of the passivation film. |
| first_indexed | 2024-04-09T15:48:07Z |
| format | Article |
| id | doaj.art-2409b231183148c28efa6805fcd16fc6 |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-04-09T15:48:07Z |
| publishDate | 2023-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-2409b231183148c28efa6805fcd16fc62023-04-26T16:10:18ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2023-04-011410.3389/fmicb.2023.11491101149110Mechanism underlying the acceleration of pitting corrosion of B30 copper–nickel alloy by Pseudomonas aeruginosaHuan Li0Mingxian Sun1Min Du2Zhenxu Zheng3Li Ma4The Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, ChinaState Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute (LSMRI), Qingdao, ChinaThe Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, ChinaThe Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, ChinaState Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute (LSMRI), Qingdao, ChinaDespite its excellent corrosion resistance, B30 copper–nickel alloy is prone to pitting, particularly when exposed to microorganisms. The mechanism underlying the acceleration of pitting in this alloy is not fully understood. In this study, the acceleration of pitting corrosion in B30 copper–nickel alloy caused by a marine microorganism named Pseudomonas aeruginosa (P. aeruginosa) was investigated using surface analysis and electrochemical techniques. P. aeruginosa significantly accelerated the pitting in B30 copper–nickel alloy, with a maximum pitting depth of 1.9 times that of the abiotic control and a significant increase in pitting density. This can be attributed to extracellular electron transfer and copper–ammonia complex production by P. aeruginosa, accelerating the breakdown of the passivation film.https://www.frontiersin.org/articles/10.3389/fmicb.2023.1149110/fullB30 copper–nickel alloyPseudomonas aeruginosaaccelerated pittingpassivation filmmicrobial corrosion |
| spellingShingle | Huan Li Mingxian Sun Min Du Zhenxu Zheng Li Ma Mechanism underlying the acceleration of pitting corrosion of B30 copper–nickel alloy by Pseudomonas aeruginosa Frontiers in Microbiology B30 copper–nickel alloy Pseudomonas aeruginosa accelerated pitting passivation film microbial corrosion |
| title | Mechanism underlying the acceleration of pitting corrosion of B30 copper–nickel alloy by Pseudomonas aeruginosa |
| title_full | Mechanism underlying the acceleration of pitting corrosion of B30 copper–nickel alloy by Pseudomonas aeruginosa |
| title_fullStr | Mechanism underlying the acceleration of pitting corrosion of B30 copper–nickel alloy by Pseudomonas aeruginosa |
| title_full_unstemmed | Mechanism underlying the acceleration of pitting corrosion of B30 copper–nickel alloy by Pseudomonas aeruginosa |
| title_short | Mechanism underlying the acceleration of pitting corrosion of B30 copper–nickel alloy by Pseudomonas aeruginosa |
| title_sort | mechanism underlying the acceleration of pitting corrosion of b30 copper nickel alloy by pseudomonas aeruginosa |
| topic | B30 copper–nickel alloy Pseudomonas aeruginosa accelerated pitting passivation film microbial corrosion |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2023.1149110/full |
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