Sliding friction and wear behaviors of surface-coated natural serpentine mineral powders as lubricant additive

被引：81
作者：
Zhang, Baosen [1 ,2 ]
Xu, Yi [1 ]
Gao, Fei [1 ]
Shi, Peijing [1 ]
Xu, Binshi [1 ]
Wu, Yixiong [2 ]
机构：
[1] Acad Armored Forces Engn, Natl Key Lab Remfg, Beijing 100072, Peoples R China
[2] Shanghai Jiao Tong Univ, Shanghai Key Lab Laser Proc & Mat Modificat, Shanghai 200240, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 07期
关键词：
Serpentine; Lubricant; Additive; Friction and wear; TRIBOLOGICAL PROPERTIES; OIL; ENHANCEMENT; COMPOSITE; MECHANISM; FILMS;
D O I：
10.1016/j.apsusc.2010.10.019
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：
This work aims to investigate the friction and wear properties of surface-coated natural serpentine powders (SP) suspended in diesel engine oil using an Optimal SRV oscillating friction and wear tester. The worn surface was characterized by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS). Results indicated that the additives can improve the wear resistance and decrease friction coefficient of carbon steel friction couples. The 0.5 wt% content of serpentine powders is found most efficient in reducing friction and wear at the load of 50 N. The SEM and XPS analysis results demonstrate that a tribofilm forms on the worn surface, which is responsible for the decrease in friction and wear, mainly with iron oxides, silicon oxides, graphite and organic compounds. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：2540 / 2549
页数：10
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