Ga-based liquid metal as an extreme pressure lubricant for steel-ceramic pairs

被引：5

作者：

Yang DongSheng ^{[1
]}

Chen WenYuan ^{[1
]}

Chen Jiao ^{[1
]}

Sun QiChun ^{[1
]}

Tan Hui ^{[1
]}

Cheng Jun ^{[1
,2
]}

机构：

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

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

来源：

SCIENCE CHINA-TECHNOLOGICAL SCIENCES | 2022年 / 65卷 / 05期

基金：

中国国家自然科学基金;

关键词：

liquid metal; sliding wear; tribochemistry; boundary lubrication; IONIC LIQUIDS; FRETTING WEAR; GALLIUM; ALLOY; BEHAVIOR; DIFFUSION; PERFORMANCE; INDIUM; FILM; OIL;

D O I：

10.1007/s11431-021-2015-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Extreme pressure lubrication is a crucial engineering problem for many mechanical assemblies. Herein, an extraordinary and novel functional material, Ga-based liquid metal (GLM), is found to be a promising extreme pressure lubricant for steel-ceramic sliding pairs and bears applied load above 1500 N. A Ga-rich metallic tribofilm forms on the frictional interface during sliding, providing good lubricity and bearing capability. In addition, the lubrication performance of GLM strongly depends on its composition and the contacting materials. Ternary Ga-In-Sn alloy has superior lubrication to binary Ga-In alloy. GLM lubrication is more effective on the interfaces of AISI52100/Si3N4 than on those of AISI52100/SiC sliding pairs.

引用

页码：1107 / 1115

页数：9

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