提高了混合纳米润滑剂的极压和摩擦学性能

IF 1.6 Q4 MATERIALS SCIENCE, COATINGS & FILMS

Tribology - Materials, Surfaces & Interfaces Pub Date : 2023-07-03 DOI:10.1080/17515831.2023.2235230

P. Verma, M. Charoo, Pranav Dev Srivyas, Tanmoy Medhi

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引用次数: 0

摘要

摘要:本研究报道了一种用于青铜/AISI 4340合金钢摩擦副的新型混合纳米润滑剂的摩擦学性能。本研究中使用的杂化纳米添加剂有助于提高润滑油的润滑性，并能在极端条件下持续使用。最初，通过不同浓度的Al2O3(0.5、0.8、1.0和1.5 wt)来记录摩擦和磨损性能。%)和GNP(0.05, 0.1, 0.2和0.5 wt。%)。在此基础上，通过添加0.8 wt得到最佳杂化浓度(OHC)。%的Al2O3和0.2 wt。与最佳的al2o3基润滑剂和GNP基润滑剂相比，摩擦系数(COF)分别降低了83.84%和79.75%。而OHC润滑油的磨损量(WV)分别比上述润滑油降低了98.28%和75%。进行了极压(EP)测试，OHC润滑油报告了混合纳米添加剂基润滑油的焊接点改善。图形抽象

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Enhanced extreme pressure and tribological performance of hybrid nano lubricant

ABSTRACT The present study reports the tribological performance of a novel hybrid nano-lubricant for bronze/AISI 4340 alloy-steel tribopair. The hybrid nano-additive used in the present study helps to improve the lubricity and can sustain under extreme conditions. Initially, friction and wear properties are recorded by varying concentrations of Al2O3 (0.5, 0.8, 1.0, and 1.5 wt. %) and GNP (0.05, 0.1, 0.2, and 0.5 wt. %). Based on the results, an optimum hybrid concentration (OHC) is prepared by adding 0.8 wt. % of Al2O3 and 0.2 wt. % of GNP which resulted in 83.84% and 79.75% reductions in coefficient of friction (COF) in comparison to optimum Al2O3-based and GNP-based lubricants, respectively. However, the wear volume (WV) for OHC lubricant indicated 98.28% and 75% reduction in comparison to the above-mentioned lubricants, correspondingly. Extreme pressure (EP) tests were carried out and OHC lubricant reported improved weld point for hybrid nano additive-based lubricant. GRAPHICAL ABSTRACT

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来源期刊

Tribology - Materials, Surfaces & Interfaces MATERIALS SCIENCE, COATINGS & FILMS-

CiteScore

2.80

自引率

0.00%

发文量