Table 7 Electrochemical parameters obtained from the different types of electrochemical measurement (EK—corrosion potential, LPR—linear polarization resistance, PD—potentiodynamic polarization and EIS—electrochemical impedance spectroscopy).
EK | LPR | PD | EIS | |||||
|---|---|---|---|---|---|---|---|---|
Ecorr [mV] | Ecorr [mV] | jcorr [nA/cm2] | Rp [MΩ m2] | Ecorr [mV] | jcorr [nA/cm2] | Eb [V] | |Z| MΩ cm2 | |
CoCr—virgin | − 341 | − 341 | 34.3 | 0.759 | − 358 | 39.4 | 541 | 1.13 |
CoCr—reused | − 241 | − 239 | 37.5 | 0.695 | − 237 | 32.5 | 552 | 1.05 |
Ti6Al4V—reused | − 455 | − 457 | 51.8 | 0.503 | − 498 | 65.8 | – | 0.577 |
Ti6Al4V—virgin | − 329 | − 303 | 74.6 | 0.35 | − 295 | 76.4 | 3000 | 0.436 |
