磁场对纯Cu微生物腐蚀行为的影响

卫晓阳,杨丽景,吕战鹏,郑必长,宋振纶

Influence of Magnetic Field on Corrosion of Pure Cu in Artificial Seawater with Multispecies Aerobic Bacteria

Xiaoyang WEI,Masoumeh MORADI,Lijing YANG,Zhanpeng LV,Bizhang ZHENG,Zhenlun SONG

表3 Cu在未施加磁场和施加磁场的溶液中浸泡不同时间后的电化学阻抗谱拟合参数

Table 3 Impedance parameters of pure copper after immersion in seawater for different time in the absence and presence of magnitic fields

Magnitic field / mT Timed RsΩ·cm2 Rct±SDΩ·cm2 CPEdlμF·cm-2 Rp±SDΩ·cm2 CPEpμF.cm-2 Rf ±SDΩ·cm2 CPEfμF·cm-2 Rb±SDΩ·cm2 CPEbμF·cm-2 0 0 4.61 9819±1.36 27.5 365.9±0.72 37.1 --- --- --- --- 1 5.62 19650±5.70 54.4 501.1±0.45 78 --- --- --- --- 3 2.61 19720±4.21 12.6 389.0±0.91 54.3 --- --- --- --- 5 3.56 17430±4.18 63.3 462.5±0.95 8.8 --- --- --- --- 7 3.85 11610±2.45 20.1 206.2±0.83 84.4 --- --- --- --- 10 3.25 7259±1.11 22.5 216.7±0.78 98.6 --- --- --- --- 28 0 4.46 9294±1.31 72.5 --- --- 233.9±1.27 37.1 75.28±0.18 6.8 1 6.94 34210±1.78 65.5 --- --- 312.5±1.12 153.0 292.20±0.21 29.4 3 3.10 42200±3.56 12.0 --- --- 4314.0±1.87 251.0 379.30±0.09 4.7 5 2.97 41250±6.92 112.0 --- --- 2108.0±0.98 1170.0 584.60±0.87 210.0 7 2.69 21580±4.02 85.7 --- --- 8864.0±2.35 310.0 8.51±0.03 85.7 10 2.93 14170±1.64 106.0 --- --- 7301.0±1.33 2800.0 46.30±0.05 106.0 60 0 4.45 9248±1.27 75.6 --- --- 232.8±1.32 17.2 75.28±0.15 6.8 1 6.24 35240±1.30 71.9 --- --- 1740.0±1.45 25.2 281.60±0.21 43.3 3 4.74 41020±3.89 26.1 --- --- 902.9±1.66 26.9 56.78±0.65 22.9 5 3.25 23020±4.89 105.0 --- --- 6972.0±1.02 134.0 48.07±0.09 39.9 7 4.77 19220±1.93 121.0 --- --- 5467.0±2.30 162.0 16.00±0.04 41.6 10 1.87 16570±1.67 136.0 --- --- 4337.0±1.41 332.0 3.42±0.01 52.2