硫酸盐还原菌对海洋环境中低碳钢腐蚀的影响：溶解有机碳和温度的作用

IF 4.1 2区环境科学与生态学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

International Biodeterioration & Biodegradation Pub Date : 2025-06-27 DOI:10.1016/j.ibiod.2025.106156

Michael Olatunde , Alfred R. Akisanya , Karen P. Scott , Jennifer C. Martin , M. Amir Siddiq , Srinivas Sriramula , Alethea Madgett

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引用次数: 0

摘要

硫酸盐还原菌（SRB）是海洋环境腐蚀的重要贡献者。介质中溶解有机碳（DOC）的浓度对SRB腐蚀的影响较大。在本研究中，我们通过实验研究了DOC、温度和暴露时间对含SRB海水中低碳钢腐蚀速率和形貌的协同效应。结果表明，在25天内，腐蚀速率与DOC浓度成反比，但在随后的100天内，腐蚀速率与DOC浓度成正比，达到125天。温度在15 ~ 25℃之间对腐蚀速率没有显著影响。发现SRB的局部腐蚀活性受多孔生物膜-腐蚀产物基质在钢表面的不均匀性的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Sulphate reducing bacteria influenced corrosion of a low carbon steel in marine environment: the role of dissolved organic carbon and temperature

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Sulphate reducing bacteria influenced corrosion of a low carbon steel in marine environment: the role of dissolved organic carbon and temperature

Sulphate Reducing Bacteria (SRB) are significant contributors to corrosion in marine environments. The corrosion induced by SRB can be influenced by the concentration of Dissolved Organic Carbon (DOC) in the media. In this study, we experimentally investigated the synergistic effects of DOC, temperature, and exposure time on the corrosion rate and morphology of a low-carbon steel in seawater containing SRB. The results showed that the corrosion rate was inversely proportional to the DOC concentration up to 25 days, but directly proportional for the subsequent 100 days of exposure, up to 125 days. There was no significant effect of temperatures between 15 and 25 °C on the corrosion rate. Localised corrosion activity of the SRB was found to be influenced by the heterogeneity of porous biofilm-corrosion product matrix on the steel surface.

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来源期刊

International Biodeterioration & Biodegradation 生物-环境科学

CiteScore

9.60

自引率

10.40%

发文量

107

审稿时长

21 days

期刊介绍： International Biodeterioration and Biodegradation publishes original research papers and reviews on the biological causes of deterioration or degradation.