Current-carrying lubricating behavior of gallium-based liquid metal for Cu/ Al tribo-pair

被引：1

作者：

Zhang, Xuhu ^{[1
,3
]}

Ma, Jiqiang ^{[3
]}

Guo, Jie ^{[1
,2
]}

Chen, Juanjuan ^{[1
]}

Tan, Hui ^{[1
]}

Cheng, Jun ^{[1
,2
]}

Zhu, Shengyu ^{[1
,2
]}

Yang, Jun ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[2] Shandong Lab Adv Mat & Green Mfg Yantai, Yantai 264006, Peoples R China

[3] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China

来源：

WEAR | 2025年 / 564卷

基金：

中国国家自然科学基金;

关键词：

Gallium-based liquid metal; Current-carrying; Lubrication; Cu; TRIBOLOGICAL PROPERTIES; PERFORMANCE;

D O I：

10.1016/j.wear.2024.205715

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Current-carrying friction and wear issues have a significant impact on the performance and service life of electrical systems. This paper investigated lubricating behavior of gallium-based liquid metal (GLM) for the Cu/ Al current-carrying tribo-pair. The results showed that when there is GLM lubrication, the coefficient of friction is in the range of 0.19-0.27, and the wear rate of Cu alloy is in the range of 0.87 x 10-5 mm3/Nm to 1.83 x 10-5 mm3/Nm. Compared without GLM lubricant, the coefficient of friction is decreased by approximately 1.3-2.5 times, and the wear rate is decreased by around 3.1 to 8.3 times. Its main lubrication mechanism is to generate a uniform and stable Ga-Al metal film at the friction interface, thereby effectively preventing the direct contact between the tribo-pairs and the occurrence of arc ablation.

引用

页数：13

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