Table 7.
Corrosion current density (icorr) and open circuit potential voltage (OCP) for as received, 10% cold worked and 20% cold worked Fe-13Mn-1.2C samples in both Hank's solution (HS) and Hank's solution with 0.1% bovine serum albumin addition (HS + BSA). Errors are representative of standard error for n = 5 samples.
| Cold work condition | Electrolyte solution |
icorr(×10−8) |
Calculated corrosion rate |
Ecorr |
|---|---|---|---|---|
| A/cm2 | μm/year | mV/SCE | ||
| FMC00 | HS | 110 ± 9 | 13 ± 1 | 706 ± 44 |
| HS + BSA | 107 ± 12 | 13 ± 1 | 720 ± 6 | |
| FMC10 | HS | 111 ± 9 | 15 ± 1 | 713 ± 14 |
| HS + BSA | 114 ± 4 | 13 ± 1 | 725 ± 8 | |
| FMC20 | HS | 120 ± 11 | 14 ± 1 | 708 ± 37 |
| HS + BSA | 103 ± 5 | 12 ± 1 | 715 ± 3 |