Study on Wear Model and Adhesive Wear Mechanism of Brass under Boundary Lubrication

被引：9

作者：

Liu, Lin ^{[1
,2
]}

Yang, Chao ^{[2
]}

Zhou, Jianzhong ^{[1
]}

Garmestani, Hamid ^{[3
]}

Dastan, Davoud ^{[3
]}

机构：

[1] Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Changzhou Univ, Sch Mech Engn, Changzhou 213164, Peoples R China

[3] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2021年 / 57卷 / 02期

基金：

中国国家自然科学基金;

关键词：

boundary lubrication; wear model; adhesive wear; strengthening layer; FRICTION; BEHAVIOR; FILMS;

D O I：

10.1134/S2070205121010147

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The tribological tests of brass and steel are carried out on an in-situ tribometer. The Stribeck curve illustrates that the roughness and the wear rate as a whole reflect the lubrication regimes. Under boundary lubrication, a mathematical model based on positive pressure and roughness is established. A good agreement between the measurement and the prediction is found. According to the analysis of worn surface morphology, the main wear mechanism of brass is adhesive wear under boundary lubrication, which results in relatively high values of tribological parameters. The oxides strengthening layer is hardly generated under boundary lubrication until the experiment enters the mixed lubrication (ML) and the hydrodynamic lubrication (HL) regimes.

引用

页码：367 / 373

页数：7

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