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CN  62-1224/O4

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刘宇航, 黄永彪, 张仁辉. 摩擦诱导季戊四醇四油酸酯润滑增效性能研究[J]. 摩擦学学报(中英文), 2024, 44(10): 1−11. doi: 10.16078/j.tribology.2023127
引用本文: 刘宇航, 黄永彪, 张仁辉. 摩擦诱导季戊四醇四油酸酯润滑增效性能研究[J]. 摩擦学学报(中英文), 2024, 44(10): 1−11. doi: 10.16078/j.tribology.2023127
LIU Yuhang, HUANG Yongbiao, ZHANG Renhui. Investigation on Enhancement of Lubrication Performance of Pentaerythritol Tetraoleate[J]. Tribology, 2024, 44(10): 1−11. doi: 10.16078/j.tribology.2023127
Citation: LIU Yuhang, HUANG Yongbiao, ZHANG Renhui. Investigation on Enhancement of Lubrication Performance of Pentaerythritol Tetraoleate[J]. Tribology, 2024, 44(10): 1−11. doi: 10.16078/j.tribology.2023127

摩擦诱导季戊四醇四油酸酯润滑增效性能研究

Investigation on Enhancement of Lubrication Performance of Pentaerythritol Tetraoleate

  • 摘要: 基于多元醇酯毒性低、生物降解和润滑性能好等特点,本文中研究了在不同载荷(2 N、10 N)和500 r/min工况下,季戊四醇四油酸酯(PETO)与聚α烯烃(PAO4)在316不锈钢接触界面间的润滑性能. 摩擦测试结果显示,2 N、500 r/min工况下,PETO体系与PAO4体系的磨损体积较干摩擦状态分别下降了2倍和1.7倍;在10 N、500 r/min工况下,PETO与PAO4润滑下的摩损体积较干摩擦状态分别下降了12倍和8.9倍,表明PETO体系的耐磨性能优于PAO4. Raman光谱和TEM (透射电子显微镜)分析结果显示,PETO与PAO4经摩擦诱导作用生成类石墨烯层状结构,大幅提升了摩擦体系减摩抗磨性能.

     

    Abstract:
    316 steel is a widely used material for mechanical components, and more investigations have been reported due to its mechanical properties and corrosion resistance, while its tribological properties have not received enough attention. Friction and wear is the result of material transfer at the contact surface caused by mutual motion between two objects in touch. As we known, friction and wear not only wastes resources, but also seriously shortens the lifespan of mechanical parts. Lubrication is the most effective way to reduce friction and wear, which can minimize the contact area between the interfaces resulting in reducing the wear and friction. Besides, liquid lubrication is widely used in mechanical, automotive, aviation, and other industrial industries because of its low coefficient of friction, low noise, and light wear. Therefore, investigation on 316 steel's tribological behavior under liquid lubrication is necessary. The lubricating properties of polyalphaolefins are exceptionally outstanding, however, their limited biodegradability poses a potential threat to environmental safety, thus necessitating the exploration of more environmentally sustainable lubricants is imperative.
    Based on the polyol esters with the characteristics of low toxicity, biodegradability, and good lubrication performance, the lubricating performance of polyalphaolefin (PAO4) and pentaerythritol tetraoleate (PETO) between the interfaces of 316 stainless steel at 2 N, 10 N, and 500 r/min were investigated in this work. The tribological results showed that compared to the dry frictional condition at 2 N and 500 r/min, the wear volumes of the PETO and PAO4 systems decreased by 2 and 1.7 times, respectively. As compared with the dry friction condition under 10 N and 500 r/min, the wear volumes of the PETO and PAO4 systems decreased by 12 and 8.9 times, respectively, and the wear resistance of PETO system was superior to that of the PAO4 system. Raman spectroscopy and TEM results showed that PETO and PAO4 was transformed into the graphene-like layered structure through the friction-induced effect, which effectively improved the friction-reduction and anti-wear performance.

     

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