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Enhancing AW/EP property of lubricant oil by adding nano Al/Sn particles

机译:通过添加纳米Al / Sn颗粒增强润滑油的AW / EP性能

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摘要

This paper presents results of experiments to enhance antiwear/extreme pressure (AW/EP) properties of a lubricant oil by adding metal nano particles. In this experiment, Al, Sn and Al + Sn nano-particles were selected as trial additives, The AW and EP properties were evaluated on Four-Ball test machine, while the feature and composition of the wear scar surface were investigated by scan election microscope (SEM) and energy dispersion spectrum (EDS). The test results show that the AW and EP performance can be improved within a wide load range by adding Al + Sn nanopartides. Analysis of the enhancement mechanism has also been conducted in this experiment and presented in this paper, It is found that nano-Sn particles can be deposited on the friction surface when the pressure was moderate and act as AW additive, It is also found that the nano-Al particles can be deposited under the condition of high load pressure and act as EP additive. Thus, the AW and EP properties of tested lubricant oil have been improved at the same time due to adding both Al and Sn.
机译:本文介绍了通过添加金属纳米颗粒来增强润滑油的抗磨/极压(AW / EP)性能的实验结果。本实验选择Al,Sn和Al + Sn纳米粒子作为试验添加剂,在四球试验机上评价了AW和EP性能,并通过扫描选择显微镜研究了磨痕表面的特征和组成。 (SEM)和能量色散谱(EDS)。测试结果表明,通过添加Al + Sn纳米粒子,可以在较宽的负载范围内提高AW和EP性能。在该实验中也对增强机理进行了分析,并在本文中进行了介绍,发现当压力适中时纳米Sn颗粒可以沉积在摩擦表面上并充当AW添加剂,并且发现纳米铝颗粒可以在高负载压力的条件下沉积并充当EP添加剂。因此,由于同时添加了Al和Sn,被测润滑油的AW和EP性能得到了改善。

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