公开(公告)号：US20210108289A1

公开(公告)日：2021-04-15

申请号：US16721551

申请日：2019-12-19

Applicant: Dalian University of Technology

Inventor： Tongmin Wang ,  Rengeng Li ,  Huijun Kang ,  Zongning Chen ,  Enyu Guo ,  Jinchuan Jie ,  Zhiqiang Cao ,  Yiping Lu ,  Yubo Zhang ,  Tingju Li

IPC: C22C9/00 ,  C21D8/02

Abstract: The present invention provides a copper alloy with high strength, high electrical conductivity, and high wear resistance and a preparation method thereof. The copper alloy includes 0.7 to 1.5 wt % of Cr, 0.2 to 0.6 wt % Zr and Hf, and Cu as balance. The present invention further discloses a preparation method of the copper, and the method includes the following steps: conducting hot-rolling and then solution treatment, removing a surface oxidation layer, and successively conducting first rolling, first aging treatment, second rolling, and second aging treatment. In the present invention, the preparation method of the copper alloy with high strength, high electrical conductivity, and high wear resistance can effectively avoid mutual interference between hard second phase particles and alloying elements, and the copper alloy with high strength, high electrical conductivity, and high wear resistance prepared by using the method has excellent wear resistance and mechanical properties.