858935.fig.001a
(a)
858935.fig.001b
(b)
Figure 1: SEM micrographs of Ti-15Zr-5Nb alloy surface galvanostatically anodized in 0.3 M H3PO4 solution for 45 min. at 10 mA/cm2: (a) hill-like protuberances; (b) nanotube-like porosity.