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文章编号： 16726987（2019）01004805； DOI： 10.16351/j.16726987.2019.01.008
付肖肖， 孙瑞雪*
(青岛科技大学 材料科学与工程学院，山东 青岛 266042)
摘要： 利用微弧氧化工艺,并通过在硅酸盐系电解液中添加氧化石墨烯,在AZ31镁合金表面制备一层含碳的微弧氧化陶瓷层。运用扫描电子显微镜（SEM）及能谱仪(EDS）等测试方法研究了涂层的表面形貌、厚度等。结果表明：加入氧化石墨烯后陶瓷层致密平整，膜层缺陷得到有效改善，含碳陶瓷层厚度为4~5 μm，与基体结合良好。电化学测试结果表明，加入氧化石墨烯后能有效提高AZ31镁合金的耐腐蚀性能。
关键词： 镁合金; 微弧氧化; 氧化石墨烯; 耐蚀性中图分类号： TG 146.2+2 文献标志码： A引用格式： 付肖肖， 孙瑞雪. 石墨烯对镁合金微弧氧化层结构和耐蚀性影响\[J\]. 青岛科技大学学报（自然科学版）， 2019， 40（1）： 4852.
FU Xiaoxiao, SUN Ruixue. Effect of graphene on microstructure and corrosion resistance of micro arc oxidation layer of magnesium alloy\[J\]. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2019, 40(1)： 4852.
Effect of Graphene on Microstructure and Corrosion Resistance of Micro Arc Oxidation Layer of Magnesium Alloy
FU Xiaoxiao, SUN Ruixue
(College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: A microarc oxidation ceramic layer containing carbon was prepared on the surface of AZ31 magnesium alloy by the microarc oxidation process and by adding graphene oxide to the silicatebased electrolyte.The surface morphology and thickness of the coating were studied by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The results show that after adding graphene oxide, the ceramic layer is compact and smooth, and the film defects are effectively improved. The thickness of the carbon ceramic layer is about 4—5 μm, which is well bonded with the substrate. The electrochemical test results show that the corrosion resistance of AZ31 magnesium alloy can be effectively improved after the addition of graphene oxide.
Key words: magnesium alloy; micro arc oxidation; graphene oxid; corrosion resistance
收稿日期： 20180115
基金项目： 山东省自然科学基金项目（ZR2014EMM019）.
作者简介： 付肖肖（1993—），女，硕士研究生.*通信联系人.
