鼠李糖脂与2,2-二溴-3-次氮基丙酰胺协同抑制X80管线钢的微生物腐蚀

王娅利, 管方, 段继周, 张丽娜, 杨政险, 侯保荣

Synergistic Inhibition of Rhamnolipid and 2, 2-dibromo-3-hypoazopropionamide on Microbiologically Influenced Corrosion of X80 Pipeline Steel

WANG Yali, GUAN Fang, DUAN Jizhou, ZHANG Lina, YANG Zhengxian, HOU Baorong

表2 X80试片在不同溶液体系中的动电位极化曲线的拟合参数

Table 2 Fitting parameters of potentiodynamic polarization curves of X80 coupons in different media

Parameter Ecorr / mV vs. SCE Icorr / µA·cm-2 βa / mV·dec-1 βc / mV·dec-1 Sterile -721 2.1 158.3 -126.2 Sterile + 500 mg/L RL -673 3.3 277.3 -135.5 SRB -621 17.6 350.6 -105.7 SRB + 500 mg/L RL -669 8.9 208.4 -108.7 SRB + 150 mg/L DBNPA -655 6.8 190.0 -146.6 SRB + 150 mg/L DBNPA + 500 mg/L RL -688 2.7 194.4 -148.6 SRB + 300 mg/L DBNPA -663 6.3 311.4 -131.4