Friction and wear behaviors of Ti alloys are vital to their applications in aerospace components and ocean devices. The spherical SnAgCu-Al 2 O 3 (S-SA) are synthesized via spark plasma sintering (SPS) to prepare the Ti-S-SA for achieving excellent lubrication. On a ball-on-flat tribometer, Ti-S-SA exhibits the best friction and wear performance among the samples prepared by SPS. Approximately 12.0 wt% of Al 2 O 3 is coated with 15.0 wt% SnAgCu to form a SnAgCu-enriched film, resulting in the reduction of binding ability of the Al 2 O 3 with the surface material. The rotation of Al 2 O 3 particles improved as SnAgCu deformed under a low load. Subsequently, the friction resistance reduces, and a low material loss is observed from the friction surface; these phenomena facilitate excellent tribological behavior. Under coordinating functions of 12.0 wt% Al 2 O 3 and 15.0 wt% SnAgCu, Ti-S-SA shows a friction coefficient of 0.20 and the wear rate of %3.39 Â 10 À4 mm 3 N À1 m À1 .
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