Ni、Y复合石墨烯作为润滑油添加剂对GCr15钢摩擦学行为的影响  

The effect of graphene wrapped Ni,Y nano-particles as lubricant addictive on the friction behavior of GCr15 steel

作　　者：师晶 赵润强 王琬瑢 徐颖强[1] SHI Jing;ZHAO Run-qiang;WANG Wan-rong;XU Ying-qiang(School of Mechanical Engineering, Northwestern Polytechnical University, Xi′an 710072, China;College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi′an 710021, China;State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China)

机构地区：[1]西北工业大学机电学院,陕西西安710072 [2]陕西科技大学机电工程学院,陕西西安710021 [3]清华大学摩擦学国家重点实验室,北京100084

出　　处：《陕西科技大学学报》2022年第1期133-139,共7页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(51905326);清华大学摩擦学国家重点实验室开放基金项目(SKLTKF19A02)。

摘　　要：以高定向热解石墨为原料,采用高能球磨法制得多层石墨烯,以及Ni、Y金属颗粒复合多层石墨烯.通过扫描电子显微镜、拉曼光谱、X射线衍射光谱对上述多层石墨烯及Ni、Y复合多层石墨烯进行形貌和结构表征.分别将上述多层石墨烯及Ni、Y复合多层石墨烯加入聚α烯烃PAO6中,系统考察分散液对GCr15自配副界面摩擦学行为的影响.结果表明:利用球磨法能够制备多层石墨烯,同时,Ni、Y金属颗粒能够与多层石墨烯形成纳米复合结构.GCr15钢自配副在聚α烯烃PAO6油润滑条件下,向油中添加多层石墨烯及Ni、Y复合多层石墨烯后,摩擦系数降低至0.03~0.05.In this study,highly oriented pyrolytic graphite(HOPG)was used as raw material to fabricate multi-layer graphene(ML-Gr)via high energy ball milling.Further,Ni/Y nano-particles were composited into the as-fabricated multi-layer graphene to get Ni/Y@Gr composition.Scanning electron microscopy,Raman spectroscopy,X-ray diffraction were employed to characterize the morphology and nano-structures.Then the ML-Gr and Ni/Y@Gr were added as lubricant addictive to poly alpha olefins 6(PAO6).And the solid-liquid lubricant was dropped on self-mated GCr15 steel counterpart interface to improve its tribological property.Results indicate that the friction coefficient of self-mated GCr15 steel was reduced to 0.03~0.05 by adding the as-prepared solid-liquid lubricant.

关 键 词：多层石墨烯 Ni、Y复合多层石墨烯 高能球磨法 润滑油添加剂 摩擦学行为 

分 类 号：TE624.82[石油与天然气工程—油气加工工程]