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Antioxidant for poor wear resistance of titanium alloys , high temperature performance is poor, In this paper, ion nitriding , ion carburizing surface modification of titanium alloy , and its organizational structure , surface strength , tribological properties , high temperature anti- oxidation properties research and analysis of the system . Titanium alloy by ion nitriding , on the surface can be obtained containing Ti2N , TiN hard phase of the modified layer . Significantly enhanced the Ti6Al4V surface of the substrate , the hardness from surface declining gradient trend . The thickness of the nitrided layer as the temperature increases , the time, the thickness increases . MM-200 friction tester , friction and wear experiments , the friction Counterpair GCr15 steel ring . Wear mechanism of ion nitriding nitrogen modified layer adhesive and abrasive wear mainly treated titanium alloy can get a good anti-friction , wear resistance has been greatly improved . Titanium alloy on the surface can be obtained by ion carburizing containing TiC hard phase of the modified layer . The surface hardness has been greatly improved , the treated surface hardness up to 2054HV hardness than the matrix increased nearly five times , the hardness of the outside to the inside with a declining gradient trend . The thickness of the diffusion layer as the temperature increases , the time, the thickness also increases. Adoption the batch for penetration enhancers law , to avoid the surface of the carbon black layer . Weight gain experiments and macroscopic surface morphology analysis through oxidation resistance , the modified layer showed good high temperature stability , a significant improvement of the titanium alloy , high temperature oxidation resistance .
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