REPRODUCIBILITY OF THE SURFACE CHARACTERISTICS OF ANODIZED AA2024-T3 AIRCRAFT ALLOY WITH DEPOSITED Ce-CONVERSION COATING
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2022-01-01
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Abstract
The establishment of any technology requires data verification regarding the repeatability and reproducibility of the obtained products. It includes the capability to repeat the properties of the respective products, in order to ensure quality reproduction. Namely, the ability of reproducing the characteristics of the final products determines the reliability of the used technological regime. In the present study a large amount of data was collected and analyzed. The data contain information for the color characteristics and the hydrophobicity of 28 samples of the AA2024-T3 aircraft alloy, coated with combined oxide layers. The coating primers were formed by means of anodization and subsequent sealing with cerium oxide layers. The combination of these methods results in the formation of hybrid layers, composed of Anodic Aluminum Oxide (AAO) and Cerium Conversion Coating (CeCC). Finally, the combined AAO-CeCC protective coatings were submitted to a total of 56 measurements and the obtained results underwent statistical data treatment. As a main result, the acquired statistical data have revealed a high level of repeatability, and can be used as a standard for the further production of similar coating systems