Fig. 1. Surface morphology and 3D profile of micro-pits. (a) Surface morphology; (b) 3D profile

Fig. 2. Friction coefficient of each sample versus time

Fig. 3. Mass loss of each sample

Fig. 4. 3D morphology of wear scar and corresponding width and depth for each sample. (a) 3D morphology of wear scar for S1;(b) 3D morphology of wear scar for S2; (c) 3D morphology of wear scar for S3; (d) wear width; (e) wear depth

Fig. 5. Surface morphologies of wear scars of matrix and micro-textured sample. (a)(d) S1; (b)(e) S2; (c)(f) S3

Fig. 6. EDS analysis of wear surface for each sample. (a) S1; (b) S2; (c) S3

Fig. 7. Schematic of wear mechanism of micro-textured titanium alloy at 600 ℃ high temperature wear condition