新型耐微生物腐蚀油管钢的硫酸盐还原菌腐蚀行为研究

杨宝齐, 闫茂成, 史显波, 高博文

SRB Induced Corrosion Behavior of a Novel Microbial Corrosion Resistant Pipeline Steel

YANG Baoqi, YAN Maocheng, SHI Xianbo, GAO Bowen

表3 接菌培养基中的EIS拟合结果

Table 3 Fitting results of EIS of two test steels in Fig.8

Samples Time / d Rs / Ω·cm2 Rbc / Ω·cm2 Qbc / Ω-1·cm-2·s n Rct / Ω·cm2 Qct / Ω-1·cm-2·s n Ordinary steel 1 3.64 8008 5.82 × 10-4 52.97 1.43 × 10-3 2 3.52 9103 3.12 × 10-3 0.258 1.73 × 10-2 4 3.61 3311 3.79 × 10-3 483 1.20 × 10-2 7 3.87 4671 6.44 × 10-3 2930 4.01 × 10-3 10 3.81 2045 6.39 × 10-3 3114 4.87 × 10-3 14 3.87 1019 6.34 × 10-3 7339 6.29 × 10-3 MIC resistant steel 1 3.56 0.11 5.09 × 10-4 2.31×104 6.01 × 10-4 2 3.62 692 2.02 × 10-3 27.91 6.14 × 10-3 4 3.47 24.5 1.02 × 10-2 269 3.70 × 10-3 7 3.55 8.26 3.71 × 10-3 1.66 × 104 2.83 × 10-3 10 3.59 38.2 3.23 × 10-3 1.37 × 104 2.93 × 10-3 14 3.65 36.3 3.52 × 10-3 5.66 × 104 2.10 × 10-3