Table 2.
Corrosion performance of different coating processes.
| Substrate | Coating | Corrosion medium | Corrosion voltage (V) | Corrosion current (μA/cm2) | Corrosion resistance (kΩ cm2) | References |
|---|---|---|---|---|---|---|
| Mg-Zn-Ca | HA | SBF | −1.41 | 25 | – | Wang et al., 2010 |
| AZ31 | HA | SBF | −1.57 | 5.56 | – | Sun et al., 2019 |
| AZ91 | Hybrid | 3.5% NaCl | – | – | 430 | Ashassi-Sorkhabi et al., 2019 |
| AZ31 | Composite | SBF | −1.62 | 3.4 × 10−4 | – | Wei et al., 2014 |
| AZ31 | PLA | SBF | −1.57 | 7.72 | – | Shi et al., 2015 |
| Mg-6Zn | PLGA | 0.9 NaCl | −1.44 | 0.085 | – | Li et al., 2010 |
| Mg | PCL | Hank's solution | −1.53 | 0.0045 | – | Li et al., 2014 |
| AZ31B | Hybrid | 0.005 NaCl | – | – | 160 | Lamaka et al., 2008 |