▎ 摘　　要

NOVELTY - The preparation method of copper-base alloy material involves mixing 83.5 wt.% pure ingot and 12.5 wt.% pure niobium ingot, heating the mixed material at 1050-1700 degrees C and then melting, keeping the temperature for 10 minutes, then adding argon gas protection melt liquid, mixing 2.5 wt.% pure niobium powder and 1.5 wt.% graphene powder and fully stirring for 1-5 minutes, reducing the temperature of alloy melt to 900-1600 degrees C for 10-15 minutes and then solidifying to form semi-solid mixed structure melt, pouring semi-solid mixed structure melt into a grinding tool and cooling by circulating water to prepare ingot, cooling the ingot at cooling rate of 50-200 degrees C/minute to room temperature. USE - The method is useful for preparing copper-base alloy material. ADVANTAGE - The method enables preparation of copper-base alloy material with high tensile strength.