journal article·2021-12-06Open access

Preparation of 1060, 2024 and 7075 Aluminum Alloy Anodic Oxide Films

Chaojie Jing, Ruijue Wang, Fangchao Zhao, Lunwu Zhang, Qiongyao He, Xiaoqiang Tong

Coatings· Volume 11· Issue 12

Abstract

On aluminum alloys of grades 1060, 2024 and 7075, regular and highly uniform oxide films were formed by anodic oxidation. Anodizing was carried out at a constant pressure in a phosphoric acid solution of various concentrations. Using scanning electron microscopy (SEM) and X-ray diffraction (XRD), the optimal characteristics of the method of anodic oxidation for forming uniform oxide films on aluminum alloys were determined: anodic oxidation time, temperature, voltage and the concentration of H3PO4. It was found that, in the process of anodizing, the films have gone through four stages: a non-porosity stage, a mixed stage, an ordered porosity stage and a disordered porosity stage.
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Research context

OpenAlex topics: Anodic Oxide Films and Nanostructures · Concrete Corrosion and Durability · Corrosion Behavior and Inhibition

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Southwest Technology and Engineering Research Institute, Chongqing 400039, China

Department of Science, Faculty of Chemistry, Civil Aviation University of China, Tianjin 300300, China

CSGC Key Laboratory of Ammunition Storage Environmental Effects, Chongqing 400039, China

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