Effect of Pulsed Current Frequency and Anodisation Time on Surface Properties of Electropolished and Nonelectropolished Titanium Substrates

Figure 4

SEM images of nonelectropolished titanium surfaces after anodisation at different pulsed current frequencies: (a) 100 Hz; (b) 10 Hz; (c) 1 Hz; and (d) 0.33 Hz.

(a)

(b)

(c)

(d)