Effect of high-pressure rheology of lubricating oils on boundary lubrication

被引：4

作者：

Mia, Sobahan ^{[1
]}

Morita, Shigeki ^{[1
]}

Ohno, Nobuyoshi ^{[1
]}

机构：

[1] Saga Univ, Dept Mech Engn, Saga 8408502, Japan

来源：

TRIBOLOGY INTERNATIONAL | 2011年 / 44卷 / 06期

关键词：

Lubricating oil; Solidification; Anti-wear; Boundary lubrication; ELASTOHYDRODYNAMIC LUBRICATION; CONCENTRATED CONTACTS; ADDITIVES; TRACTION; BEHAVIOR; TEMPERATURE; TRANSITIONS; VISCOSITY; MECHANISM; FRICTION;

D O I：

10.1016/j.triboint.2010.04.003

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

High-pressure rheology of lubricating oil was determined using different experiments, and the phase diagram was drawn. The four-ball wear tests were used to evaluate anti-wear characteristics of oils in boundary lubrication condition. The bridged ring compound oils showed the minimum wear scar in the four-ball wear tests. The diameter of wear scar decreases with increasing the elastohydrodynamic film-forming capability. Next, we considered the molecular packing parameter T-VE - T at the four-ball wear test. The T-VE - T values of bridged ring compound oils were in the range 250-360 and oils were elastic-plastic solid. It is concluded that the solidified oil film under boundary lubrication conditions has the anti-wear action. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：751 / 755

页数：5

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