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首页> 外文期刊>Tribology Transactions >Lubricating Ability of Magnesium Silicate Hydroxide-Based Nanopowder as Lubricant Additive in Steel-Steel and Ceramic-Steel Contacts
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Lubricating Ability of Magnesium Silicate Hydroxide-Based Nanopowder as Lubricant Additive in Steel-Steel and Ceramic-Steel Contacts

机译:基于硅酸镁的硅酸盐的润滑能力作为钢 - 钢和陶瓷 - 钢触点润滑剂添加剂

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摘要

The friction and wear of sliding surfaces are responsible for important energy losses and negative environmental effects. Magnesium silicate hydroxide-based nanopowder (KM) is an antiwear and self-recovery material that could be applied in the lubricating subsystem of mechanical components. This study investigates the ability of KM to reduce friction and improve the wear resistance of sliding steel surfaces. A ball-on-flat reciprocating tribometer was used with steel-steel contact to evaluate the lubricating ability of KM as an additive in a commercially available motor oil. Experimental results show that by adding 0.23 wt% of KM to the motor oil, friction and wear can be reduced up to 45 and 40%, respectively, under the longer distance studied. In addition to ball-on-flat tests, a bearing test rig was used to investigate the antiwear behavior of KM as an additive in a commercial high-speed grease. Ball bearings of steel-steel and steel-ceramic contacts were lubricated with a high-speed grease. The addition of 0.4 wt% of KM to the grease improved the durability and reduced the ring wear. Optical microscopy, noncontact 3D profilometry, scanning electron microscopy, and energy-dispersive X-ray spectroscopy were utilized to analyze and discuss the wear mechanisms and surface interactions.
机译:滑动表面的摩擦和磨损负责重要的能量损失和负面的环境影响。硅酸镁基于氢氧化硅酸盐的纳米粉末(KM)是一种抗磨和自回收材料,可用于润滑机械部件的润滑子系统。本研究调查了km以减少摩擦力的能力,提高滑动钢表面的耐磨性。与钢钢接触一起使用球形往复往复摩擦计,以评估KM作为商业上可用的机油中的添加剂的润滑能力。实验结果表明,通过将0.23wt%的Km到马达油,摩擦和磨损可分别降低45%和40%,在较长的距离下进行。除了球形扁平测试之外,使用轴承试验台用于在商业高速润滑脂中探讨Km作为添加剂的抗磨行为。钢钢和钢陶瓷触点的滚珠轴承润滑高速润滑脂。向润滑脂添加0.4wt%的Km改善耐用性并降低环磨损。光学显微镜,非接触式3D轮廓测定,扫描电子显微镜和能量分散X射线光谱分析和讨论磨损机制和表面相互作用。

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