Microbially Influenced Corrosion in Epoxy-Ceramic Coated Carbon-Steel Cooler

被引：0

作者：

Hlavackova, Veronika ^{[1
,2
]}

Koutnik, Petr ^{[3
]}

Liskova, Klara ^{[1
]}

Cmelik, Jiri ^{[3
]}

Riha, Jakub ^{[1
]}

Stoulil, Jan ^{[4
]}

Sevcu, Alena ^{[1
,2
]}

机构：

[1] Tech Univ Liberec, Inst Nanomat Adv Technol & Innovat, Dept Appl Biol, Liberec, Czech Republic

[2] Tech Univ Liberec, Fac Sci Humanities & Educ, Liberec, Czech Republic

[3] ORLEN UniCRE As, Usti Nad Labem, Czech Republic

[4] Univ Chem & Technol, Dept Met & Corros Engn, Prague, Czech Republic

来源：

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2025年

关键词：

anticorrosive coating; corrosion products; crevice corrosion; microbially-influenced corrosion (MIC); mitigation; SULFATE-REDUCING BACTERIA; MICROBIOLOGICALLY INFLUENCED CORROSION; CAST-IRON PIPES; WASTE-WATER; GEN; NOV; DENITRIFYING BACTERIA; BIOFILM; QUANTIFICATION; OIL; METHYLOPHILACEAE;

D O I：

10.1002/maco.202414671

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crevice corrosion and corrosion products were observed during the maintenance of a carbon steel cooler repeatedly treated with a commercially produced anticorrosive coating. This prompted a case study to investigate possible microbially influenced corrosion (MIC) in a system operating at moderate temperatures with treated, chlorinated cooling water. Cooling water, corrosion products, sediments, and swabs were analyzed for microstructural, chemical and microbiological characteristics. The cooling water contained sufficient nutrients to support microbial growth, along with chlorides that could compromise material integrity. Chemical analysis of the corrosion products revealed elevated sulfur levels, suggesting microbial activity. Molecular-genetic analysis showed a significant abundance of sulfur-oxidizing, nitrate-reducing, sulfate-reducing, and methylotrophic bacteria in the corrosion products. Our results indicate that the synergistic activity of these bacteria was the primary cause of MIC in the carbon steel cooling system, despite the use of anticorrosive treatments, highlighting the need to revise the mitigation strategy.

引用

页码：1154 / 1168

页数：15

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