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Table 1 Potentiodynamic polarization parameters for the corrosion of the Q230A steel in 1M HCl in absence and presence of different concentrations of the extracts

From: Investigation of ginkgo biloba leave extracts as corrosion and Oil field microorganism inhibitors

Extract Concentration −Ecorr Icorr βa βc Corrosion rate IE (%)
  (mg/L) (mV) (μA/cm2) (mV/dec) (mV/dec) (mm/a)  
-- -- 0.46083 151.440 90.43 155.08 1.7753 --
WE 10 0.47503 131.180 86.83 160.49 1.5430 13.1
WE 50 0.45705 96.410 72.35 151.56 1.1340 36.1
WE 100 0.45056 57.454 65.77 161.94 0.6758 61.9
WE 200 0.4455 55.195 59.85 143.79 0.6492 63.4
WE 500 0.43980 34.272 55.18 134.99 0.4031 77.3
WE 1,000 0.42657 33.219 52.64 128.09 0.3907 78.0
AE 10 0.45347 111.570 77.58 152.17 1.3123 26.1
AE 50 0.45128 85.704 67.94 129.73 1.0081 43.2
AE 100 0.45489 54.511 65.70 121.36 0.6412 63.9
AE 200 0.45549 31.770 64.64 113.19 0.3737 78.9
AE 500 0.43987 29.917 62.11 112.71 0.3525 80.1
AE 1,000 0.42490 29.194 68.59 116.21 0.3434 80.7