The Electrochemical Stability in NaCl Solution of Nanotubes and Nanochannels Elaborated on a New Ti-20Zr-5Ta-2Ag Alloy

Figure 5

Nyquist spectra for titanium alloy (a) untreated native oxide, (b) nanochannels, and (c) nanotubes and the representation of the nanostructures with equivalent circuits for (d) native oxide, (e) nanotubes, and (f) nanochannels, used for data fitting and proposed according to the impedance spectra.

(a)

(b)

(c)

(d)

(e)

(f)