Table 3 Parameters of potentiodynamic polarization results cast iron in 3.5 wt% NaCl in the absence and presence of polyurethane at ambient temperature
From: Fortification performance of polyurethane coating in outdoor historical ironworks
Conc., (M) | βa (V/decade) | βc (V/decade) | icorr (mA cm−2) | Ecorr (mV) | I.E (%) |
|---|---|---|---|---|---|
Blank | 0.191 | 0.364 | 9.81 | − 1.24 V | – |
1% | 0.161 | 0.252 | 1.72 | − 946.2 | 83.7 |
2% | 0.113 | 0.241 | 1.51 | − 633.4 | 94.8 |