中南大学学报（自然科学版）2017，Vol.48Issue(5)：1175-1181,7.DOI:10.11817/j.issn.1672-7207.2017.05.008
电弧喷涂铝涂层阳极氧化后表面−截面结构分析
Analysis of arc sprayed Al coating surface-section structure after anodic oxidation
摘要
Abstract
The Al coatings was prepared on the surface of S355 steel using arc spraying, which was conducted using a anodic oxidation treatment, the surface and section morphologies, chemical element distribution of surface-section and phase of the obtained Al coating were analyzed by using SEM, EDS, and XRD, respectively, and the bonding mechanism of the anodic oxidized film-Al coating-substrate of S355 steel was discussed. The experimental results show that Al and O of the anodic oxidized film appears the enrichment phenomenon, existing in the form of Al2O3. The Al and O atoms in the oxidized film are distributed with high concentration, and the system of oxidized film-Al coating-base composite corrosion resistant is formed. The Al-rich layer of Al coating has the higher concentration of Al, while the Fe atoms of the substrate is diffused at the bonding interface. A small number of Al atoms in the coating are diffused into the substrate to react with Fe atoms and produce the Fe-Al compounds at the interface, improving bonding strength of arc spray Al coating.关键词
S355钢/阳极氧化/氧化膜/面扫描/线扫描/腐蚀性能Key words
S355 steel/anodic oxidation/oxidized film/plane scan/line scan/corrosion resistance分类
信息技术与安全科学引用本文复制引用
孔德军,闫保旭..电弧喷涂铝涂层阳极氧化后表面−截面结构分析[J].中南大学学报（自然科学版）,2017,48(5):1175-1181,7.基金项目
江苏省科协首席专家(工程师)项目(2013-216) （工程师）
江苏省重点研发计划项目(BE2016052) (Project(2013-216) supported by Jiangsu Province CAST Chief Expert (Engineer) （BE2016052）
Project(BE2016052) supported by Key Research and Development Project of Jiangsu Province) （BE2016052）
