Cu-Nb microcomposite wire was successfully prepared by a groove rolling process. The effects of groove rolling on the diffraction peaks, microstructure, and properties of the Cu-Nb microcomposite were investigated and the microstructure evolutions and strengthening mechanism were discussed. The tensile strength of the Cu-Nb microcomposite wire with a diameter of 2.02 mm was greater than 1 GPa, and its conductivity reached 68% of the International Annealed Copper Standard, demonstrating the Cu-Nb microcomposite wire with high tensile strength and high conductivity after groove rolling. The results show that an appropriate groove rolling method can improve the performance of the Cu-Nb microcomposite wire.

通过槽滚轧工艺成功制备了Cu-Nb微复合丝。研究了沟槽轧制对Cu-Nb微复合材料的衍射峰，显微组织和性能的影响，并探讨了其微观结构演变和强化机理。直径为2.02 mm的Cu-Nb微复合线的抗拉强度大于1 GPa，其电导率达到国际退火铜标准的68％，证明了经过高强度，高电导率的Cu-Nb微复合线凹槽滚动。结果表明，适当的沟槽轧制方法可以改善Cu-Nb微复合丝的性能。