在存在北京土壤中耐盐短杆菌的情况下，X80 管线钢的腐蚀行为。
Corrosion behavior of X80 pipeline steel in the presence of Brevibacterium halotolerans in Beijing soil.
机构信息
Department of Chemical and Biomolecular Engineering, Institute for Corrosion and Multiphase Technology, Ohio University, Athens, OH 45701, USA.
Beijing Key Laboratory of Failure, Corrosion and Protection of Oil/Gas Facility Materials, Department of Materials Science and Engineering, China University of Petroleum (Beijing), Beijing 102249, China.
出版信息
Bioelectrochemistry. 2019 Apr;126:121-129. doi: 10.1016/j.bioelechem.2018.12.001. Epub 2018 Dec 5.
In this study, the corrosion behavior of X80 pipeline steel in the presence of Brevibacterium halotolerans (B. halotolerans) was investigated by surface analysis and electrochemical measurements. Results show that B. halotolerans can attach to the surface of X80 steel, and the entire surface is covered with B. halotolerans. The corrosion products induced by B. halotolerans were FeOOH, FeO and FeSO. X80 steel corrosion was accelerated in the presence of B. halotolerans and was susceptible to pitting corrosion. The formation of pitting corrosion could be due that the B. halotolerans oxidization of elemental iron in X80 steel to either obtain electrons from the reduction of nitrate in the underlying biofilm or in the damaged corrosion product film.
本研究通过表面分析和电化学测量研究了耐盐短杆菌（Brevibacterium halotolerans，B. halotolerans）存在时 X80 管道钢的腐蚀行为。结果表明，B. halotolerans 能够附着在 X80 钢表面，整个表面都被 B. halotolerans 覆盖。B. halotolerans 诱导的腐蚀产物为 FeOOH、FeO 和 FeSO。B. halotolerans 的存在加速了 X80 钢的腐蚀，使其容易发生点蚀。点蚀的形成可能是由于 B. halotolerans 将 X80 钢中的元素铁氧化，从底层生物膜中硝酸盐的还原或受损的腐蚀产物膜中获得电子。
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