A chromium modified layer was prepared by laser surface texturing-double glow plasma surface alloying duplex treatment to improve the wear resistance of TA2 pure titanium. And the tribological behavior of the duplex treated sample at room temperature and 600 ℃ was investigated. The results showed that the continuous and dense chromium layer was fabricated using plasma alloying technology on the surface of TA2 with uniform circular texture unit. The thickness of the chromium layer was 55 μm

which is mainly composed of solid solution and CrTi and Cr

2

Ti compound phases. Chromizing treatment significantly improved the surface hardness of TA2. The laser surface texturing-plasma surface chromizing duplex treatment significantly improved the wear resistance of TA2 at room tempe

rature and 600 ℃ . In terms of mass loss

the duplex treated sample was reduced by 77.2% and 75% compared to the TA2 matrix at room temperature and high temperature respectively.