Abstract The friction-wear response of surfactant functionalized MWCNT-in-oil suspension under hybrid aluminium metal matrix composite/EN31 contact is presented. Composites were fabricated, characterized and tribological tests were performed with a pin-on-disc tribometer. Prior to tribological testing, thermophysical and stability analysis of the prepared lubricants were carried out. The operating regimes of the lubricants were predicted based on the estimated film thickness and friction responses. It is observed that the film thickness ratio for surfactant-MWCNT-oil is increased by 47% which helped in the shifting of lubrication towards the mixed regime. The findings of the study reveals that there is a remarkable enhancement in tribological behavior when surfactant functionalized MWCNT-in-oil is used. Finally, a wear map of the underlying wear mechanisms is also presented.

中文翻译：

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表面活性剂功能化多壁碳纳米管油下混合铝金属基复合材料滑动的润滑特性及磨损机理图

摘要 介绍了表面活性剂功能化的多壁碳纳米管油中悬浮液在混合铝金属基复合材料/EN31 接触下的摩擦磨损响应。复合材料的制造、表征和摩擦学测试是用销盘式摩擦计进行的。在摩擦学测试之前，对制备的润滑剂进行热物理和稳定性分析。基于估计的膜厚度和摩擦响应来预测润滑剂的运行状态。据观察，表面活性剂-多壁碳纳米管-油的膜厚比增加了 47%，这有助于润滑向混合状态的转变。研究结果表明，当使用表面活性剂功能化的油包 MWCNT 时，摩擦学行为显着增强。最后，