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

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2024-12-19 DOI:10.1016/j.wear.2024.205715

Xuhu Zhang , Jiqiang Ma , Jie Guo , Juanjuan Chen , Hui Tan , Jun Cheng , Shengyu Zhu , Jun Yang

引用次数: 0

Abstract

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 × 10⁻⁵ mm³/Nm to 1.83 × 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.

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.