中文摘要：

在硅酸盐电解液中采用微弧氧化法在2024铝合金表面形成氧化物陶瓷膜．分别用扫描电镜、X射线衍射仪研究了陶瓷膜的组织形貌和相组成．相对致密均匀的膜层主要由α—Al2O3，γ-Al2O3和少量的非晶相物质组成．陶瓷层纳米硬度从内部到外部呈下降趋势．

英文摘要：

Oxidation ceramic coatings were formed on 2024 alloy by micro--arc oxidation. SEM and XRD were used to characterize the microstructure and phase composition of the ceramic coatings. It is found that the coatings are relative dense and uniform, and mainly consist of α-Al2O3,γ-Al2O3 and amorphous phase. The nano--hardness of the ceramic coating gradually decreases from the interior to the surface of the coating along the ceramic coating.