THE EFFECT OF A FRICTION MODIFIER ON PISTON RING AND CYLINDER BORE FRICTION AND WEAR

被引：12

作者：

DAVIS, FA

EYRE, TS

机构：

[1] Department of Materials Technology, Brunel University, Uxbridge

来源：

TRIBOLOGY INTERNATIONAL | 1990年 / 23卷 / 03期

关键词：

abrasion; delamination; friction; friction modifier; lubricants;

D O I：

10.1016/0301-679X(90)90013-F

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The addition of friction modifiers to crankcase lubricants has been shown to significantly reduce the mechanical losses of critical components in internal combustion (ic) engine; thereby improving fuel economy. In this study the friction and wear of a piston ring/cylinder bore material combination was studied using a pin-on-plate laboratory tribo-test machine developed to reproduce the wear mechanisms encountered in an ic engine. Two lubricants were evaluated: (i) a standard SAE 30 grade diesel formulation, and (ii) the same formulation with the addition of a 5% soluble MoS2 friction modifier. Analysis of the wear results identified three periods of wear: (1) running-in, (2) transient wear and (3) terminal wear. Throughout this study particular emphasis has been placed on the simulation of the wear mechanisms occurring within engines. Surface analysis confirmed that both abrasive wear and delamination wear was produced. Friction benefits attributable to the addition of MoS2 friction modifier were obtained. However, under specific conditions the wear rate increased due to increased abrasion of the plate. © 1990.

引用

页码：163 / 171

页数：9

共 12 条

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[3]

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[5]

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[8]

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[9]

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[10]

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