Effects of Surface Coating Preparation and Sliding Modes on Titanium Oxide Coated Titanium Alloy for Aerospace Applications

Figure 3

SEM micrographs of the four coating surfaces (a) S1 at 20 μm thickness, (b) S1 at 30 μm thickness, (c) S2 at 20 μm thickness, and (d) S2 at 30 μm thickness.

(a)

(b)

(c)

(d)