Stern-Geary Constant for X80 Pipeline Steel in the Presence of Different Corrosive Microorganisms
来源期刊：Acta Metallurgica Sinica2019年第12期
论文作者：Yu-Peng Sun Chun-Tian Yang Chun-Guang Yang Da-Ke Xu Qi Li Lu Yin Cheng-Shuo Qiu Dan liu Ke Yang
文章页码：1483 - 1489
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 and58.60±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.
Yu-Peng Sun1，Chun-Tian Yang2，Chun-Guang Yang3，Da-Ke Xu2，Qi Li1，Lu Yin3，Cheng-Shuo Qiu2，Dan liu2，Ke Yang3
1. College of Chemistry,Liaoning University2. Shenyang National Laboratory for Material Sciences,Northeastern University3. Institute of Metal Research,Chinese Academy of Sciences
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 and58.60±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.
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