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首页> 外文期刊>RSC Advances >Coordinating influence of multilayer graphene and spherical SnAgCu for improving tribological properties of a 20CrMnTi material
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Coordinating influence of multilayer graphene and spherical SnAgCu for improving tribological properties of a 20CrMnTi material

机译：多层石墨烯和球形SnAgCu的协同作用对改善20CrMnTi材料的摩擦学性能的影响

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摘要

In order to increase the service life and operational reliability of a 20CrMnTi-steel-based gearing system, the friction and wear behavior of 20CrMnTi needs to be further improved. In this study, the sliding friction and wear properties of 20CrMnTi, 20CrMnTi-1.50?wt% graphene (20-Gr), 20CrMnTi-15.00 wt% SnAgCu (20-Sn), and 20CrMnTi-15.00 wt% SnAgCu-1.50 wt% graphene (20-Gr-Sn) were examined on a ball-on-disk tribometer. The friction and wear properties at 0–85 min of 20-Gr-Sn were significantly better compared to those of 20CrMnTi, 20-Gr, and 20-Sn. Metallic oxides appeared on the smooth wear scar of 20-Gr-Sn, which were tightly combined with the 20CrMnTi-based material. This caused a lubrication film with low hardness (approximately 1.25 GPa) to form on the grain-refined layer with high hardness (approximately 5.92 GPa). Graphene and SnAgCu in the lubrication film exhibited excellent coordinating lubrication to result in a low friction coefficient and lower wear rate. The obtained results can provide a good reference for increasing the service life of 20CrMnTi-steel-based gear systems.
机译：为了延长20CrMnTi钢齿轮系统的使用寿命和运行可靠性，需要进一步改善20CrMnTi的摩擦磨损性能。在这项研究中，20CrMnTi，20CrMnTi-1.50wt％石墨烯（20-Gr），20CrMnTi-15.00 wt％SnAgCu（20-Sn）和20CrMnTi-15.00 wt％SnAgCu-1.50 wt％石墨烯的滑动摩擦和磨损性能（20-Gr-Sn）在圆盘球式摩擦计上检查。与20CrMnTi，20-Gr和20-Sn相比，20-Gr-Sn在0-85分钟时的摩擦磨损性能明显更好。金属氧化物出现在20-Gr-Sn的光滑磨痕上，并与20CrMnTi基材料紧密结合。这导致在高硬度（约5.92 GPa）的晶粒细化层上形成了低硬度（约1.25 GPa）的润滑膜。润滑膜中的石墨烯和SnAgCu表现出优异的配位润滑性，从而导致低摩擦系数和较低的磨损率。所得结果可为延长20CrMnTi钢基齿轮系统的使用寿命提供参考。

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