Tribological Performance and Mechanism of Phosphate Ionic Liquids as Additives in Three Base Oils for Steel-on-aluminum Contact

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 先进润滑与防护材料研究发展中心

	Tribological Performance and Mechanism of Phosphate Ionic Liquids as Additives in Three Base Oils for Steel-on-aluminum Contact
	Qiao D(乔旦)1,2 ; Wang HZ(王海忠)1 ; Feng DP(冯大鹏)1
刊名	Tribology Letters
	2014
卷号	55 期号:3 页码:517-531
关键词	Antiwear additive Ionic liquids Polarity Viscosity Tribological mechanism
ISSN号	1023-8883
通讯作者	冯大鹏
英文摘要	Butylammonium dibutylphosphate and tetrabutylammonium dibutylphosphate ionic liquids (ILs) were evaluated as antiwear additives for steel-on-aluminum contact in three different base oils, a polyalphaolefin, an ester oil and an IL 1-methy-3-hexylimidazolium hexafluorophosphate, respectively, with similar viscosity and different polarities. The friction experiments were carried out on an Optimal SRV-IV oscillating reciprocating friction and wear tester at room temperature. Results indicate phosphate ILs can effectively improve the tribological properties of the base oil, especially the antiwear property, as additives for steel/aluminum contacts. For the base oils PAO10 and PAO40 with different viscosities, the higher viscosity of PAO40 can be beneficial to reducing the friction coefficient. The worn surface morphologies and chemical compositions of wear scars were analyzed by a JSM-5600LV scanning electron microscope and PHI-5702 multifunctional X-ray photoelectron spectrometer (XPS). The XPS analysis results illustrate that the phosphate IL additives in the base oils with different polarities exhibit the same tribological mechanism. A synergy exists between the adsorbed layers and boundary-lubricating films generated from the tribochemical reaction of IL and the substrate surface, which may reduce the friction coefficient and wear volume of the friction pairs.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	National Natural Science Foundation of China (51175492);the National Key Basic Research Program of China (973) (2013CB632301)
语种	英语
WOS记录号	WOS:000340571700016
公开日期	2015-01-12
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/7107]
专题	兰州化学物理研究所_先进润滑与防护材料研究发展中心兰州化学物理研究所_固体润滑国家重点实验室
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Qiao D,Wang HZ,Feng DP. Tribological Performance and Mechanism of Phosphate Ionic Liquids as Additives in Three Base Oils for Steel-on-aluminum Contact[J]. Tribology Letters,2014,55(3):517-531.
APA	Qiao D,Wang HZ,&Feng DP.(2014).Tribological Performance and Mechanism of Phosphate Ionic Liquids as Additives in Three Base Oils for Steel-on-aluminum Contact.Tribology Letters,55(3),517-531.
MLA	Qiao D,et al."Tribological Performance and Mechanism of Phosphate Ionic Liquids as Additives in Three Base Oils for Steel-on-aluminum Contact".Tribology Letters 55.3(2014):517-531.