Stern-Geary Constant for X80 Pipeline Steel in the Presence of Different Corrosive Microorganisms

被引：27
作者：
Sun, Yu-Peng [1 ]
Yang, Chun-Tian [2 ]
Yang, Chun-Guang [3 ]
Xu, Da-Ke [2 ]
Li, Qi [1 ]
Yin, Lu [3 ]
Qiu, Cheng-Shuo [2 ]
Liu, Dan [2 ]
Yang, Ke [3 ]
机构：
[1] Liaoning Univ, Coll Chem, Shenyang 110036, Liaoning, Peoples R China
[2] Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Liaoning, Peoples R China
[3] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
来源：
ACTA METALLURGICA SINICA-ENGLISH LETTERS | 2019年 / 32卷 / 12期
基金：
中国国家自然科学基金;
关键词：
X80 pipeline steel; Stern-Geary constant; Corrosion rate; Microbiologically influenced corrosion; Biofilm; MICROBIOLOGICALLY INFLUENCED CORROSION; DUPLEX STAINLESS-STEEL; SULFATE-REDUCING BACTERIA; CHLORIDE THRESHOLD VALUE; PSEUDOMONAS-AERUGINOSA; CARBON-STEEL; ELECTRON-TRANSFER; ALLOY COATINGS; BEHAVIOR; RESISTANCE;
D O I：
10.1007/s40195-019-00902-6
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The Stern-Geary constant (B value) is indispensable to measure the corrosion rate in the microbiologically influenced corrosion (MIC) systems. Linear polarization resistance (LPR) and weight loss methods were used to study the variation of B values for X80 pipeline steel in the presence of Pseudomonas aeruginosa, Acetobacter aceti and Desulfovibrio vulgaris. The results showed that B values in the presence of three different bacteria were 35.60 +/- 0.55 mV, 33.00 +/- 1.00 mV and 58.60 +/- 0.55 mV, respectively, suggesting that the change of corrosion system significantly affected the B values of X80 pipeline steel. This work further indicated that the determination of B values is necessary to accurately measure the MIC rate by LPR method.
引用
收藏
页码：1483 / 1489
页数：7
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