publication . Article . 2017

Effects of Alclad Layer and Anodizing Time on Sulfuric Acid Anodizing and Film Properties of 2E12 Aluminum Alloy

CHEN Gao-hong; HU Yuan-sen; YU Mei; LIU Jian-hua; LI Guo-ai;
Open Access Chinese
  • Published: 01 Jul 2017 Journal: Journal of Materials Engineering (issn: 1001-4381, eissn: 1001-4381, Copyright policy)
  • Publisher: Journal of Materials Engineering
Alclad and unclad 2E12 aerospace aluminum alloy were treated by sulfuric acid anodic oxidation. The effects of alclad layer and anodizing time on the anodization behaviour and corrosion resistance of anodic oxide layer on 2E12 aluminum alloy were studied. Surface and cross-section morphology of anodic oxide films were observed by scanning electron microscopy. The electrochemical properties of anodic oxide films were analyzed by potentiodynamic polarization curve and electrochemical impedance spectroscopy. The results show that the protective anodic oxide layers are formed on alclad and unclad 2E12 aluminum alloy. The film thickness increases with anodizing time ...
Medical Subject Headings: technology, industry, and agriculture
free text keywords: 2E12 aluminum alloy, alclad layer, anodizing time, corrosion resistance, Materials of engineering and construction. Mechanics of materials, TA401-492
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