摘要
采用球面接触往复移动方式,使用UTM-2摩擦磨损试验机考察了石墨烯作为润滑油添加剂的摩擦磨损性能。用TEM、SEM、XRD、红外光谱、拉曼光谱等手段对石墨烯的形貌和结构进行表征,用PAO4作为基础油和添加质量分数为0.01%石墨烯(GP)的润滑油进行对比,研究了在不同温度和不同织构面积率下的摩擦学性能。结果表明:在润滑油中添加石墨烯能显著改善摩擦磨损性能,温度为60℃和100℃时的效果最明显。在60℃和100℃工况下,在PAO4基础油中相对于原始表面各种织构都增大了摩擦系数和磨损率,在25℃和150℃工况下表面织构对摩擦磨损的影响不大;使用含有石墨烯的润滑油在不同温度下织构面积率为5%时摩擦系数较低,织构面积率为20%时摩擦系数较高,织构面积率为10%时磨损率较低。
The friction and wear properties of graphene（GP） as a lubricant additives were investigated by means of a UTM-2 tribometer via a ball on plate contact reciprocating sliding. The molecular structure and morphology of graphene nano sheets were characterized by TEM, SEM, XRD, IR and Raman spectroscopy. The friction and wear test was performed with lubricant of PAO4 oil without and with addition of 0.01% graphene（GP） respectively at different temperatures for the textured bronze with different ratio of textured area. The results show that GP can effectively reduce the friction and wear, especially at60℃ and 100℃. For the simple PAO4 oil, the bronze with untextured surface exhibits the lowest friction coefficient and wear rate at 60℃ and 100℃; whilst, with the increasing ratio of the textured area, the friction coefficient and wear rate increase. For graphene- containing PAO4 lubricating oil, the friction coefficient is lower for the bronze with 5% textured area, while higher for those with 20%; the wear rate is lower for the bronze with 10% textured area.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2016年第1期57-62,共6页
Chinese Journal of Materials Research
基金
国家自然科学基金51375407
U1530136资助项目~~
关键词
无机非金属材料
石墨烯
添加剂
织构
摩擦磨损
inorganic non-metallic materials
graphene
additive
texture
friction and wear
