Lubricating behavior of gallium-based liquid metal for Cu/Al tribo-pair

被引：2

作者：

Ma, Jiqiang ^{[1
]}

Zhang, Xuhu ^{[1
,2
]}

Guo, Jie ^{[2
,3
]}

Tan, Hui ^{[2
]}

Cheng, Jun ^{[2
,3
]}

Zhu, Shengyu ^{[2
,3
]}

Yang, Jun ^{[2
,3
]}

机构：

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

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

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

来源：

TRIBOLOGY INTERNATIONAL | 2024年 / 200卷

基金：

中国国家自然科学基金;

关键词：

Gallium-based liquid metal; Lubrication; Wear; Cu; EMBRITTLEMENT; FILM;

D O I：

10.1016/j.triboint.2024.110090

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Gallium-based liquid metal (GLM) is an emerging lubricant because of low melting point, good fluidity and thermal stability, high thermal conductivity and electrical conductivity. This work investigates the tribological behavior of GLM for Cu/Al tribo-pair. It is found that with GLM lubrication, the friction coefficient of the Cu/Al tribo-pair is reduced by approximately 1.5 to 3 times, and the wear rate of the Cu alloy is also reduced by about 4 to 16 times, compared to dry friction. Furthermore, under high-speed and high-load conditions, the lubrication effect of GLM for the Cu/Al tribo-pair is particularly prominent. GLM provided fluid lubrication for the Cu/Al tribo-pair, and the formation of a gallium-aluminum metal film on the worn surface effectively prevents the direct contact of tribo-pair, thereby reducing friction and wear.

引用

页数：10

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