Comparison of an oil-miscible ionic liquid and ZDDP as a lubricant anti-wear additive

被引：166

作者：

Qu, Jun ^{[1
]}

Luo, Huimin ^{[2
]}

Chi, Miaofang ^{[1
]}

Ma, Cheng ^{[1
]}

Blau, Peter J. ^{[1
]}

Dai, Sheng ^{[3
]}

Viola, Michael B. ^{[4
]}

机构：

[1] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

[2] Oak Ridge Natl Lab, Energy & Transportat Sci Div, Oak Ridge, TN 37831 USA

[3] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA

[4] Gen Motors Corp, Ctr Res & Dev, Detroit, MI USA

来源：

TRIBOLOGY INTERNATIONAL | 2014年 / 71卷

关键词：

Oil-soluble ionic liquid; Lubricant additives; Tribo-film; ZDDP; STEEL/STEEL CONTACTS; PERFORMANCE; MECHANISM; AMMONIUM; ALLOYS;

D O I：

10.1016/j.triboint.2013.11.010

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper reports the anti-scuffing/anti-wear behavior and mechanism of an oil-miscible ionic liquid (IL), trihexyltetradecylphosphonium bis(2-ethylhexyl)phosphate, in a base oil at 1.0 wt% concentration under both room and elevated temperatures. Results are benchmarked against those for a conventional anti-wear additive, zinc dialkyl-dithiophosphate (ZDDP). Reciprocating sliding, boundary lubrication tests were conducted using a piston ring segment against a cylinder liner piece cut from actual automotive engine components. Although the IL and ZDDP worked equally well to prevent scuffing and reduce wear in the room-temperature tests, the IL significantly outperformed ZDDP in the 100 degrees C tests. The top surfaces and cross sections of the worn surfaces were characterized to reveal the morphology, thickness, nanostructure, and chemical composition of the IL-induced tribo-films. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：88 / 97

页数：10

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