壳核结构氧化铝@石墨烯复合粉末增强铜基复合材料摩擦学性能研究  

Study on Tribological Properties of Shell-core Alumina @ Graphene Composite Powder Reinforced Copper Matrix Composites

作　　者：潘厚利 揭晓华[1] 梅少宇 麦永津[1] PANHouli;JIEXiaohua;MEIShaoyu;MAIYongjin(Department of Materials and Energy,Guangdong University of Technology,Guangzhou 510006,China)

机构地区：[1]广东工业大学材料与能源学院,广东广州510006

出　　处：《热加工工艺》2024年第14期47-51,共5页Hot Working Technology

基　　金：广州市科技计划项目(201904010406)。

摘　　要：如何充分发挥润滑组元和耐磨组元的协同作用以提高铜基复合材料摩擦学性能仍面临具大的挑战。以石墨烯为润滑组元,氧化铝为耐磨组元,对比了氧化铝和石墨烯组装为壳核结构前后对铜基复合材料摩擦学性能的影响。结果表明,与氧化铝和石墨烯分别以独立相分布于铜基体的情况相比,氧化铝和石墨烯组装为壳核结构后可以提高铜基复合材料的致密度、硬度,并有利于在磨痕表面形成连续且具有保护性的摩擦层。因此,在10~40 N载荷范围内干摩擦,后者比前者具有更低的摩擦因数和磨损率。How to give full play to the synergistic effect of lubricating and wear-resistant components in order to improve the tribological properties of copper-based composites is still facing great challenges.Using graphene as lubricating component and alumina as wear-resistant component,the effects of alumina and graphene assembly on tribological properties of copper-based composites were compared.The results show that compared with the case where alumina and graphene are separately distributed in the copper matrix,the shell core structure of alumina and graphene can improve the density and hardness of the copper matrix composites,and is conducive to the formation of a continuous and protective friction layer on the worn surface.Therefore,the latter has a lower friction coefficient and wear rate than the former in the dry friction range of 10-40 N load.

关 键 词：铜基复合材料 壳核结构 石墨烯 耐磨性 

分 类 号：TB333.12[一般工业技术—材料科学与工程]