Page 20 - 《摩擦学学报》2021年第5期

第 41 卷 第 5 期 摩 擦 学 学 报 Vol 41 No 5
2021 年 9 月 Tribology Sept, 2021

DOI: 10.16078/j.tribology.2020180

(CuMnNi) 100-x Al 高熵铜合金的显微组织、
x
力学与摩擦学性能研究

2*
1,2
2
2
柏 伟 , 张爱军 , 孟军虎 , 韩杰胜 , 吴有智 1*
(1. 兰州理工大学 材料科学与工程学院, 甘肃 兰州 730050;
2. 中国科学院兰州化学物理研究所 中国科学院材料磨损与防护重点实验室, 甘肃 兰州 730000)
摘 要: 针对工业领域对新型高强高耐磨金属材料的需求，制备了(CuMnNi) 100-x Al x (x＝0, 5, 10, 15)系列高熵铜合
金，研究了Al含量对高熵铜合金的物相组成、显微组织、力学性能和摩擦磨损性能的影响. 结果表明：CuMnNi高熵
合金仅由面心立方结构(FCC)的高熵固溶体相组成，Al元素的添加对合金基体FCC相产生了强烈的固溶强化作用，
并促进了体心立方(BCC)相形成. FCC相具有良好的塑性和韧性，而BCC相具有高强度和高硬度，两者共同作用使
(CuMnNi) 100-x Al x 系列高熵铜合金的强度随Al含量增加而提高，而塑性和韧性不断降低. 其中，(CuMnNi) 90 Al 10 高熵
铜合金中FCC相和BCC相的含量达到最佳匹配，使其具有优异的综合力学性能. 室温下，得益于优异的力学性能和
硬质BCC相良好的抗磨作用，(CuMnNi) 90 Al 10 高熵铜合金的耐磨性优于常规耐磨铝青铜C6161，磨粒磨损为其主要
磨损机制.
关键词: 高熵铜合金; (CuMnNi) 100-x Al x ; 显微组织; 力学性能; 摩擦学性能
中图分类号: TG115.5 文献标志码: A 文章编号: 1004-0595(2021)05–0609–10

Microstructure, Mechanical and Tribological Properties of

(CuMnNi) 100-x Al High Entropy Bronzes
x

2
2
1,2
2*
BAI Wei , ZHANG Aijun , MENG Junhu , HAN Jiesheng , WU Youzhi 1*
(1. School of materials science and engineering, Lanzhou University of Technology, Gansu Lanzhou 730050, China
2. Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical
Physics, Chinese Academy of Science, Gansu Lanzhou 730000, China)
Abstract: In view of the demand for new metallic materials with high strength and good wear resistance in the industrial
field, a series of (CuMnNi) 100-x Al x (x = 0, 5, 10, 15) high entropy bronzes were prepared. The phase constitution,
microstructure, mechanical and tribological properties of the high entropy bronzes were investigated systematically. The
results indicated that the CuMnNi high entropy alloy was composed of a solid solution phase with a face-centered cubic
structure (FCC). The addition of Al produced a high solid solution strengthening effect on the FCC phase of the alloy
and promoted the formation of the body-centered cubic (BCC) phase. The FCC phase had good plasticity and toughness,
while the BCC phase had high strength and hardness. The combined effect of the FCC+BCC phases increased the
strength of the (CuMnNi) 100-x Al x high entropy bronzes by increasing of Al content, while the plasticity and the toughness
decreased. The content ratio of the FCC phase and the BCC phase in the (CuMnNi) 90 Al 10 high entropy bronze reached

Received 24 August 2020, revised 9 December 2020, accepted 10 December 2020, available online 28 September 2021.
*Corresponding author. E-mail: zhangaijun@licp.cas.cn; E-mail: youzhiwu@163.com, Tel: +86-15095310820.
This project was supported by the Innovation 2025 Major Special Program of Ningbo (2019B10085), Natural Science Foundation of
Gansu Province (20JR5RA561), LICP Cooperation Foundation for Young Scholars (HZJJ20-09) and Youth Fund of Key Laboratory
of Science and Technology on Wear and Protection of Materials, Chinese Academy of Science (SYSQJ-2021-2).
宁波市科技创新2025重大专项(2019B10085), 甘肃省自然科学基金(20JR5RA561), 兰州化物所青年科技工作者合作基金
(HZJJ20-09)和中国科学院材料磨损与防护重点实验室青年基金(SYSQJ-2021-2)资助.