黑磷纳米片作为钛合金-钢接触油基润滑剂添加剂的摩擦学性能
Tribological properties of black phosphorus nanosheets as oil-based lubricant additives for titanium alloy-steel contacts.
作者信息
Wang Qingjuan, Hou Tingli, Wang Wei, Zhang Guoliang, Gao Yuan, Wang Kuaishe
机构信息
School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China.
School of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, People's Republic of China.
出版信息
R Soc Open Sci. 2020 Sep 16;7(9):200530. doi: 10.1098/rsos.200530. eCollection 2020 Sep.
The black phosphorus (BP) powders were prepared by high-energy ball milling with red phosphorus as the raw material, and then the BP nanosheets were obtained by liquid-phase exfoliation. The tribological properties of the BP nanosheets as oil-based lubricant additives were investigated by the ball-on-disc tribometer. Results show that compared with the base oil of liquid paraffin (LP), the coefficient of friction and wear rate of the BP nanosheets as the additives in liquid paraffin (BP-LP) are lower for the same loads. BP-LP lubricants could significantly improve the load-bearing capacity of the base oil for titanium alloy-steel contacts and show excellent friction-reducing and anti-wear properties. The surface morphologies and elemental compositions of the friction pairs were further analysed using an optional microscope, scanning electron microscope and X-ray photoelectron spectroscopy. The lubrication mechanism of BP-LP can be attributed to the synergistic effects between lamellar adsorption and interlayer shear of BP nanosheets.
以红磷为原料通过高能球磨制备黑磷（BP）粉末，然后通过液相剥离获得BP纳米片。利用球盘摩擦磨损试验机研究了BP纳米片作为油基润滑剂添加剂的摩擦学性能。结果表明，与液体石蜡（LP）基础油相比，在相同载荷下，BP纳米片作为液体石蜡（BP-LP）添加剂时的摩擦系数和磨损率更低。BP-LP润滑剂能显著提高基础油对钛合金-钢接触副的承载能力，并表现出优异的减摩抗磨性能。使用光学显微镜、扫描电子显微镜和X射线光电子能谱进一步分析了摩擦副的表面形貌和元素组成。BP-LP的润滑机制可归因于BP纳米片的层状吸附和层间剪切的协同作用。
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