|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Advances and Discoveries in Non-equilibrium Driven Nanomaterials and Thin Films
||Wetting Behavior of Ce-based Conversion Coatings on 7075 Aluminum Alloy
||Diana Galeano, Santiago Vargas, Carlos Eduardo Castano
|On-Site Speaker (Planned)
Aluminum alloys and other metal components need protective coatings or surface treatments to deal with environmental corrosion. Rare-earth-based conversion coatings are good environmentally-friendly candidates for lightweight metals. However, these coated systems stored in a humid environment will eventually get prone to corrosion. So, coatings with additional properties such as hydrophobicity will guarantee a longer shelf life of the components. Superhydrophobic surfaces have gained a particular interest in the industry since their properties allow to use them in different technological applications. This work investigates the wettability behavior of Cerium-based conversion coatings on 7075 Aluminum alloy obtained by spontaneous electroless immersion technique. The surfaces turn from hydrophilic to superhydrophobic as a result of controlled heat treatment. The rare phenomenon of superhydrophobicity in these oxides is explained by the nanostructure, electronic structure, and morphology of the films.
||Planned: Supplemental Proceedings volume