铝合金阳极氧化方法及成膜机理的研究进展  

Research Progress of Anodic Oxidation Methods and Film Formation Mechanism of Aluminium Alloys

作　　者：薛合 刘灿灿 唐大兴 王润 窦文众 梁军 XUE He;LIU Cancan;TANG Daxing;WANG Run;DOU Wenzhong;LIANG Jun(College of Materials Science and Engineering,Nanjing Tech University,Nanjing 211816,China;School of Materials Science and Engineering,Dongguan University of Technology,Guangdong Dongguan 523808,China)

机构地区：[1]南京工业大学材料科学与工程学院,南京211816 [2]东莞理工学院材料科学与工程学院,广东东莞523808

出　　处：《表面技术》2024年第9期1-10,共10页Surface Technology

基　　金：国家自然科学基金(51901099,52071325);江苏省高校优势学科建设工程资助项目。

摘　　要：对铝合金阳极氧化的发展现状及趋势进行了总结和展望。首先,介绍了阳极氧化工艺的类型,并着重阐述了最常用的酸性阳极氧化以及碱性阳极氧化的特点。随后,概括了阳极氧化膜生长机理的研究进展,包括氧化膜的生长过程及提出的相关理论。此外,对碱性阳极氧化的研究现状进行了归纳,并简要介绍了其与酸性阳极氧化在氧化膜结构特点及生长机理方面的异同。最后,针对当前阳极氧化技术存在的问题和面临的挑战,对其未来的发展趋势做了展望,并指出了阳极氧化技术的发展方向。Aluminium and aluminium alloys are widely used in many fields such as aerospace,automotive and transportation,construction and electronics owing to their low density,non-polluting and easy recycling,good electrical conductivity,corrosion resistance and ductility.However,surface treatment is often necessary for aluminum alloys to meet the application requirements due to their high activity and service in the complex and harsh environments.At present,the surface treatments which can be used for aluminum alloys include chemical conversion,anodic oxidation,micro-arc oxidation,electroplating,electroless plating,vapor deposition,thermal spraying,laser cladding,etc.Among them,anodic oxidation,as an efficient surface treatments,can significantly improve the performance of aluminum alloys,which has gained widespread attention and has become one of the most commonly used surface treatments for aluminum alloys.With the development of social economy,the application of aluminum alloys continues to expand,which makes more and more diversity for the required performance of anodic film.However,there are still some deficiencies in the current commonly used anodic oxidation process,and the film growth mechanism is not comprehensively understood.The work aims to summarize the research progress of anodic oxidation of aluminum alloy and propose the development trends.Firstly,the types of anodic oxidation processes are introduced and the characteristics of the most commonly used acid anodic oxidation as well as alkaline anodic oxidation are emphasized.Among them,acidic anodic oxidation is widely studied and applied due to the advantages of low cost,high production efficiency and simple operation.Acidic anodic oxidation includes sulfuric acid,oxalic acid,chromic acid,hydroxyethyl phosphoric acid,mixed acid,hard anodic oxidation,porcelain anodic oxidation,spark discharge anodic oxidation and other types according to the electrolyte and electrical parameters,each with its own characteristics,widely used in various fields.Then,the researc

关 键 词：铝合金 阳极氧化 氧化膜 生长机理 

分 类 号：TG174.4[金属学及工艺—金属表面处理]