The relationship between the electron work function and friction behavior of passive alloys under different conditions

被引：14

作者：

Liu, Shiyi ^{[1
,2
]}

Lu, Hao ^{[1
]}

Li, D. Y. ^{[1
]}

机构：

[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2V4, Canada

[2] China Acad Space Technol, Beijing 100094, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2015年 / 351卷

关键词：

Electron work function; Friction; Adhesion; Alloys;

D O I：

10.1016/j.apsusc.2015.05.125

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electron work function (EWF), adhesion and friction coefficient of three passive alloys were investigated. During dry sliding tests, surfaces having higher work functions showed larger coefficients of friction. While under oil-lubricated sliding condition, the trend was reversed. It appears that when the surface passive film was damaged, the surface broken atomic bonds became active, leading to larger friction. However, under the oil-lubricated sliding condition, the passive film was retained, resulting in a different trend. Surface adhesive forces of freshly polished surfaces and etched ones were measured using an atomic force microscope. Results of the adhesion measurement are consistent with the behaviors of the alloys observed during the friction tests. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：316 / 319

页数：4

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