Table 2: Fitting parameters of the two time constants electric equivalent circuit.

Ti-15Zr-5Nb ( ) ( ) ( ) ( ) ( )

Ringer pH = 3.21

Bare14.2 0.96 0.90
Anodized14.8 0.98 0.91

Ringer pH = 7.58

Bare13.6 0.97 0.91
Anodized15.1 0.99 0.93

Ringer pH = 8.91

Bare14.5 0.95 0.90
Anodized14.9 0.97 0.92