Imidazolium ionic liquids as additives of the synthetic ester propylene glycol dioleate in aluminium-steel lubrication

被引：153

作者：

Jimenez, Ana-Eva ^{[1
]}

Bermudez, Maria-Dolores ^{[1
]}

机构：

[1] Univ Politecn Cartagena, Dept Ingn Mat & Fabricac, Grp Ciencia Mat & Ing Met, Cartagena 30202, Spain

来源：

WEAR | 2008年 / 265卷 / 5-6期

关键词：

lubricants and additives; lubricant testing; aluminium; steel; ionic liquids; synthetic ester;

D O I：

10.1016/j.wear.2008.01.009

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Four room-temperature ionic liquids (ILs), 1-CnH2n+1-3-CH3-imidazolium X- [X=PF6; n=6 (L-P106). X=BF4; n=2 (L102), 6 (L106). X = CF3 SO3; n = 2 (L-T102)], have been studied as 1 wt.% additives of the synthetic ester propylene glycol dioleate (PGDO) in pin-on-disk tests for AISI 52100 steel-ASTM 2011 aluminium contacts at 25 and 100 degrees C. At room temperature, friction values for PGDO + 1 wt.% IL are similar or higher than that of the base oil, and only the more polar additives L102 and L-T102 reduce wear rates. At 100 degrees C, all additives reduce both friction and wear with respect to the base oil. The results are discussed in terms of the molecular structure and properties of the lubricants. Wear mechanisms and surface interactions have been studied by energy dispersive (EDS) and X-ray photoelectron (XPS) spectroscopies. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：787 / 798

页数：12

共 20 条

[1] Surface interactions and tribochernical processes in Ionic Liquid lubrication of alumnium-steel contacts [J].