Table 3 Potentiodynamic polarization parameters for the corrosion of the Q230A steel in the HCl solution containing WE
Concentration | −Ecorr | Icorr | βa | βc | Corrosion rate | IE (%) |
|---|---|---|---|---|---|---|
(mg/L) | (mV) | (μA/cm2) | (mV/dec) | (mV/dec) | (mm/a) | |
-- | 0.46083 | 151.440 | 90.431 | 155.08 | 1.7753 | -- |
10 | 0.46344 | 89.193 | 77.592 | 142.57 | 1.0491 | 40.9 |
50 | 0.46471 | 141.990 | 107.110 | 166.89 | 1.5727 | 11.4 |
100 | 0.45503 | 90.507 | 77.031 | 146.09 | 1.0646 | 40.0 |
200 | 0.45521 | 31.412 | 63.159 | 119.64 | 0.3695 | 79.2 |
500 | 0.46082 | 51.929 | 62.717 | 81.32 | 0.6974 | 60.7 |
1,000 | 0.45254 | 30.770 | 58.282 | 135.34 | 0.36192 | 79.6 |