Significantly enhanced high-temperature mechanical properties of Cu-Cr-Zn-Zr-Si alloy with stable second phases and grain boundaries

Release time:2026-09-11

Impact Factor:8.2

DOI number:10.1016/j.matdes.2023.112292

Affiliation of Author(s):中南大学材料科学与工程学院

Journal:Materials & Design

Abstract:Improving high-temperature strength and resistance to high-temperature softening is an important method to promote the application of high-performance Cu-Cr-Zr alloy in fields such as resistance welding electrodes and high-speed railway contact wires. A Cu-1.0Cr-0.4Zn-0.1Zr-0.05Si alloy was designed and the combining effects of Zn and Si elements on the microstructure and high-temperature mechanical properties of the alloy were studied. The tensile strength of the alloy at room temperature was 556 MPa, and it was 349 MPa at 500℃ with a softening temperature of 620℃.

Co-author:Jiang Yanbin, Wu Zixiao, Wang Meng, Li Zhou, Xiao Zhu, Jia Yanlin, Guo Huiwen, Niu Liye

First Author:Huang Chengzhi

Discipline:Engineering

First-Level Discipline:Materials Science and Engineering

Volume:233

Page Number:112292

ISSN No.:0264-1275

Translation or Not:no

Date of Publication:2023-09-01