Electrodeposition, Characterization, and Corrosion Stability of Nanostructured Anodic Oxides on New Ti-15Zr-5Nb Alloy Surface

Table 3

Main corrosion parameters for bare and anodized Ti-15Zr-5Nb alloys obtained in Ringer solutions at 37°C.

Ti-15Zr-5Nb	𝑖corr (𝜇A/cm^2)	𝑉corr (𝜇m/Y)	Resistance class	Ion release (ng/cm^2)	𝑅𝑝 (kΩ⋅cm^2)
Ringer pH = 3.21
Bare	0.081	0.751	PS	76.3	330
Anodized	0.029	0.269	PS	27.33	1295
Ringer pH = 7.58
Bare	0.039	0.358	PS	36.4	397
Anodized	0.0054	0.050	PS	5.08	3020
Ringer pH = 8.91
Bare	0.071	0.657	PS	66.75	305
Anodized	0.019	0.175	PS	17.78	1380

PS: perfect stable.