▎ 摘　　要

NOVELTY - Preparing graphene-rare earth hybrid microstructure titanium-based composition material comprises (i) dispersing the graphene in solvent by ultrasonic pre-dispersion assisted mechanical stirring, obtaining a graphene dispersion; (ii) performing high-energy ball milling of rare earth-titanium powder, rare earth element-containing substance and titanium or titanium alloy powder by high energy and mixing to obtain rare earth-titanium mixed powder; (iii) adding graphene dispersion obtained in the step (i) to the rare earth-titanium based mixed powder obtained in the step (ii), mechanically shearing to a semi-solid state under conditions of 80-100 degrees C, then carrying out low energy ball milling, mixing, and then vacuum-drying to obtain ternary mixed powder; and (iv) sintering the ternary mixed powder obtained in the step (iii). USE - The method is useful for preparing graphene-rare earth hybrid microstructure titanium-based composition material. ADVANTAGE - The method: adopts two-step mixing method with graphene-ternary rare earth mixed micro-structure mixed powder and sintering to obtain graphene-rare earth mixed micro-structure titanium-based composition material; adopts the composition material in the ball containing rare earth element substance particle, which has dispersion strengthening and strengthening grain boundary; adopts titanium carbide in situ synthesized, which has dispersion effect of strengthening; adopts grapheme, which has the function of transferring load, three cooperative strengthening, which improves graphene-rare earth hybrid strength mechanical properties of microstructure titanium base composition material.