Tribology of vegetal oils as base for eco-friendly nano additivated lubricants

Q2 Engineering

INCAS Bulletin Pub Date : 2023-12-02 DOI:10.13111/2066-8201.2023.15.4.11

D. Guglea, G. Cristea, L. Deleanu, T. F. Ionescu, G. Ojoc, D. Dima, C. Georgescu

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引用次数: 0

Abstract

This paper presents an analysis based on experimental data for pointing out the behavior of rapeseed oil when it is additivated with a modifier of friction and wear, the nano hexagonal Boron nitride. All tests are done on a four-ball machine, in mild regime. Test parameters were sliding velocity (0.38 m/s, 0.53 m/s, 0.69 m/s, corresponding to the spindle rotational speed of the four-ball machine of 1000 rpm, 1400 rpm, 1800 rpm (±10 rpm),), force (100 N – 300 N), test duration 1 h. There were calculated the average friction coefficient during the test and the average wear scar diameter (WSD) for each test. The same test parameters were done twice and the values in this paper are the average of these two tests. Wear was discussed for the same velocity range, in terms of WSD, but for comparing tests with different sliding velocity (implicitly, different sliding distances), there was used the wear rate of the wear scar diameter. The results on wear parameters, using additivated rapeseed oil, do not show spectacular results for the parameters tested in this study, but underline the “insensitivity” of the lubricants to the variation of the test regime (especially with respect to sliding speed), which is desirable for certain applications.

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作为环保型纳米添加剂润滑油基料的植物油的摩擦学特性

本文以实验数据为基础，分析了在菜籽油中添加纳米六方氮化硼的摩擦磨损改性剂对菜籽油性能的影响。所有的测试都是在一个四球机器上进行的，在温和的环境下。试验参数为滑动速度(0.38 m/s、0.53 m/s、0.69 m/s，分别对应四球机主轴转速1000 rpm、1400 rpm、1800 rpm(±10 rpm)、)、受力(100 N ~ 300 N)、试验持续时间1 h。计算试验过程中的平均摩擦系数和每次试验的平均磨痕直径(WSD)。同样的试验参数做了两次，文中的数值是两次试验的平均值。在相同的速度范围内，以WSD来讨论磨损，但在不同滑动速度(隐式地，不同滑动距离)的比较试验中，使用磨损疤痕直径的磨损率。使用添加菜籽油的磨损参数的结果并没有显示出本研究中测试参数的惊人结果，但强调了润滑剂对测试制度变化的“不敏感性”(特别是关于滑动速度)，这对于某些应用是可取的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

INCAS Bulletin Engineering-Aerospace Engineering

自引率

0.00%

发文量

审稿时长

8 weeks

期刊介绍： INCAS BULLETIN is a scientific quartely journal published by INCAS – National Institute for Aerospace Research “Elie Carafoli” (under the aegis of The Romanian Academy) Its current focus is the aerospace field, covering fluid mechanics, aerodynamics, flight theory, aeroelasticity, structures, applied control, mechatronics, experimental aerodynamics, computational methods. All submitted papers are peer-reviewed. The journal will publish reports and short research original papers of substance. Unique features distinguishing this journal: R & D reports in aerospace sciences in Romania The INCAS BULLETIN of the National Institute for Aerospace Research "Elie Carafoli" includes the following sections: 1) FULL PAPERS. -Strength of materials, elasticity, plasticity, aeroelasticity, static and dynamic analysis of structures, vibrations and impact. -Systems, mechatronics and control in aerospace. -Materials and tribology. -Kinematics and dynamics of mechanisms, friction, lubrication. -Measurement technique. -Aeroacoustics, ventilation, wind motors. -Management in Aerospace Activities. 2) TECHNICAL-SCIENTIFIC NOTES and REPORTS. Includes: case studies, technical-scientific notes and reports on published areas. 3) INCAS NEWS. Promote and emphasise INCAS technical base and achievements. 4) BOOK REVIEWS.