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中文摘要：
采用端面摩擦磨损实验机考察了表面修饰纳米铜颗粒作为润滑油添加剂的摩擦学性能,利用SEM,EDS和纳米压痕仪对摩擦表面进行了形貌、元素和力学性能分析。结果表明：纳米铜颗粒能够显著改善石油基础油650SN的抗磨减摩性能,降低摩擦表面温度。这主要是由于纳米铜颗粒在摩擦过程中在摩擦表面熔化、润湿摩擦副基体并最终铺展形成一层软的铜保护膜,从而显著降低了摩擦和粘着磨损。
英文摘要：
The tribological properties of Cu nanoparticles as lubricating oil additive were evaluated on a facing tester.The morphology,element distribution and micro mechanical property of the worn surface were investigated by means of scanning electron microscopy（SEM）,energy dispersive spectrometry（EDS） and nanoindentation tester.The results show that the wear resistance and friction reduction properties of 650SN mineral oil are improved markedly by adding Cu nanoparticles.The friction surface temperature lubricated by nanocopper additive is clearly lower than that lubricated by 650SN.A protective copper film is generated on the rubbed surface,which has lower hardness than 45# steel and contributes to better tribological properties.
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