基于搅拌摩擦加工制备石墨烯增强铝基复合材料  

Preparation of Graphene Reinforced Al Matrix Composites Based on Friction Stir Processing

作　　者：杨晓敏[1] 蔡云[1] 李明珠[2] 

机构地区：[1]永城职业学院机电工程系,河南永城476600 [2]西京学院机械工程学院,陕西西安710123

出　　处：《热加工工艺》2018年第2期158-161,169,共5页Hot Working Technology

基　　金：陕西省教育厅科研基金资助项目(15JK2172);西京学院科研基金资助项目(XJ160120)

摘　　要：为减少增强相团聚现象,利用搅拌摩擦加工方法,分别将多层石墨烯和无电镀铜石墨烯添加进6061-T651铝合金,制备铝基复合材料。通过光学显微镜、拉曼光谱仪、XRD衍射仪和硬度计,分析复合材料中增强相的分布质量、复合材料成分及硬度。结果表明：与多层石墨烯相比,无电镀铜石墨烯更容易在搅拌区中分散均匀,但出现石墨化现象;多层石墨烯和无电镀铜石墨烯均未与铝母材结合生成金属间化合物;无电镀铜石墨烯添加到铝合金中,可有效提高其硬度,硬度最大可达搅拌摩擦母材的85%,硬度波动最大仅为13 HV。In order to reduce the agglomeration of the reinforced phase, multilayer graphene and electroless copper graphene were added into 6061-T651 aluminum alloy by means of friction stir processing respectively to prepare Al matrix composites. The distribution quality of the reinforced particles, the composition and the hardness of the composites were analyzed by optical microscope, Raman spectrometer, XRD and hardness tester, respectively. The results show that compared with multilayer graphene, the electroless copper graphene are more easily dispersed in the stirring zone, but the graphitization appears; the graphene and electroless copper plating graphene don＇t react with the Al base material to form intermetallic compounds; hardness can be improve effectively after adding the electroless copper graphene into the Al matrix composites（up to 85% of the friction stirred base metal）, the maximum hardness fluctuation is only 13 HV.

关 键 词：铝基复合材料 团聚现象 多层石墨烯 金属间化合物 

分 类 号：TB333[一般工业技术—材料科学与工程]