Impact of gravity on biofilm growth and corrosion of X65 pipeline steel by a sulfate reducing bacterium

被引：2
|
作者：
Khan, Adnan [1 ,2 ]
Xu, Lingjun [3 ]
Kijkla, Pruch [4 ]
Kumseranee, Sith [4 ]
Punpruk, Suchada [4 ]
Gu, Tingyue [1 ,2 ,3 ]
机构：
[1] Ohio Univ, Dept Biol Sci, Athens, OH 45701 USA
[2] Ohio Univ, Mol & Cellular Biol Program, Athens, OH 45701 USA
[3] Ohio Univ, Inst Corros & Multiphase Technol, Dept Chem & Biomol Engn, Athens, OH 45701 USA
[4] PTT Explorat & Prod, Bangkok 10900, Thailand
来源：
CORROSION SCIENCE | 2024年 / 234卷
关键词：
Pipeline clock position; Biofilm; Gravity; Microbiologically influenced corrosion; Desulfovibrio ferrophilus IS5; MICROBIOLOGICALLY INFLUENCED CORROSION; ESCHERICHIA-COLI; CARBON-STEEL; IRREVERSIBLE ATTACHMENT; STAINLESS-STEEL; MICROSTRUCTURE; TRANSITION; TRANSPORT; OIL;
D O I：
10.1016/j.corsci.2024.112127
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Desulfovibrio ferrophilus (IS5) corrosion of X65 carbon steel was impacted by gravity. Six o 'clock position (6P) had the highest sessile count due to gravity assisting planktonic cell settling in early biofilm formation, leading to most severe static corrosion followed by 9P and 12P. The 7-d weight loss at 6P was 49.6 +/- 4.4 mg/cm 2 (3.3 mm/ a in uniform corrosion rate) followed by 9P with 35.7 +/- 2.6 mg/cm 2 (2.4 mm/a) and 12P with 20.5 +/- 5.5 mg/ cm 2 (1.4 mm/a). The trend was supported by electrochemical measurements. The weight loss differences reduced considerably when there was agitation, supporting the gravity hypothesis.
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收藏
页数：12
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