▎ 摘　　要

NOVELTY - Preparing argon arc deposited graphene reinforced titanium-based composite coating involves preparing a mixed powder, where titanium powder having a purity of more than 99.0% and an average particle size of 20 mu m is mixed with graphene having a purity of 95.0% and an average diameter of about 20 mu m. The titanium powder and graphene are mixed. The mass percentage of the olefin is 1-5 wt.%, the graphene powder is mixed with the 40% aqueous solution of polyethylene glycol, and then ultrasonically dispersed for 30 to 40 minutes, and then the titanium powder is added under stirring with a magnetic stirrer to obtain a mixed slurry. The mass percentage of the olefin is 1% to 5%; the graphene powder is mixed with the 40% aqueous solution of polyethylene glycol, and then ultrasonically dispersed for 30 to 40 minutes, and then the titanium powder is added under stirring with a magnetic stirrer to obtain a mixed slurry. USE - Method for preparing argon arc deposited graphene reinforced titanium-based composite coating. ADVANTAGE - The method enables to prepare argon arc deposited graphene reinforced titanium-based composite coating in a cost-effective manner. DETAILED DESCRIPTION - The obtained mixed slurry is placed in a ball mill tank, and the zirconia grinding ball is added, and the ball mill is ball milled at 200 to 300 r/min for 1 to 3 hours, and then the ball milled slurry is placed in a vacuum drying oven at 100 to 120 degrees C for 10 to 12 hours, to obtain a dry powder where, the mass ratio of the grinding ball to the mixed powder is 8 to 10:1. The specific process of welding is to first apply the mixed powder to the surface of titanium alloy by using a binder, coating thickness of 1-1.5mm, naturally drying for 24h, and then drying in a constant temperature drying oven at 100 to 120 degrees C for 2-4h. The arc heat of the argon arc welding machine is used to melt the mixed powder coated on the surface of the titanium alloy to form a composite coating. The specific process parameters of the welding are: welding current: 90-120A, deposition rate: 120mm/ Min, welding voltage: 22-24V; argon flow rate: 9-12L/min; During the welding process, the titanium alloy matrix and the mixed powder are always in the argon gas protection with a purity of 99.99%.