Anti-wear effects of modified graphene/nanodiamond hybrid additives in lubricating oils

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-05-09 DOI:10.1016/j.wear.2025.206116

Tiancheng Ouyang , Xiuyang Sun , Xiaoyu Tuo , Yang Yang , Qiaoyang Deng , Shaohui Qin

引用次数: 0

Abstract

Ordinary lubricants cannot prevent severe wear and accompanying vibration noise under heavy load conditions. To solve this problem, ricinoleic acid modified graphene is prepared and synthesized with PAO 6 and nanodiamond to form hybrid lubricants with excellent performance. In the test, friction pairs are balls and plates made of austenitic stainless steel. Under the condition of 10 N–120 rpm - 0.088 m/s, the friction coefficient and wear volume of the 0.1 wt%:0.1 wt% hybrid particles lubricant are reduced by 64 % and 71 %, respectively. The average noise sound pressure level is decreased by 3.6 dB(A), and the vibration and noise peaks are inhibited. The lubrication mechanism of hybrid particles is to reduce frictional wear by polishing effect, filling effect and stable friction film, and the impact absorption effect of their microstructures can inhibit friction-induced vibration and noise.

Abstract Image

查看原文本刊更多论文

改性石墨烯/纳米金刚石杂化添加剂在润滑油中的抗磨效果

普通润滑剂不能防止重载条件下的严重磨损和伴随的振动噪声。为了解决这一问题，制备了蓖麻油酸改性石墨烯，并与PAO 6和纳米金刚石合成了性能优异的混合润滑剂。在测试中，摩擦副是由奥氏体不锈钢制成的球和板。在10 n ~ 120 rpm ~ 0.088 m/s工况下，0.1 wt%:0.1 wt%混合颗粒润滑油的摩擦系数和磨损体积分别降低64%和71%。平均噪声声压级降低3.6 dB(A)，振动和噪声峰值得到抑制。混合颗粒的润滑机理是通过抛光效应、填充效应和稳定的摩擦膜来减少摩擦磨损，其微结构的冲击吸收作用可以抑制摩擦引起的振动和噪声。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.