Structure and corrosion behavior of sputter deposited cerium oxide based coatings with various thickness on Al 2024-T3 alloy substrates

Fabrication of Sputtered Ce/La, La/Ce Oxide Bilayers on AA6061 and AA7075 Aluminum Alloys for the Development of Corrosion Protective Coatings

“…The crystallite size and roughness of bilayered coatings was slightly enhanced in comparison with monolayers. Considering that the ion bombardment and temperature on the growing coating surface would induce compressive internal strain by causing atomic displacements and densification of the coating, the compressive strain associated with crystallite coalescence would be more evident during the substrate/La/Ce interaction [ 33 ].…”

“…Undoubtedly, with the rapid development of the aerospace industry, reducing weights, increasing reliability and stability, a proper option of structured materials have become more vital for the success of advanced designs. In this way, considering that RF magnetron sputtering is a scarcely explored technique for inhibiting the corrosion of metallic substrates [ 26 , 31 , 32 , 33 , 34 , 35 ], it can be an alternative to search new methods to protect metallic substrates for industrial applications. The present work was aimed at using the RF magnetron sputtering technique to evaluate the inhibition efficiency of Ce, La films and bilayered coatings (Ce/La and La/Ce) in order to delay the pitting corrosion of AA7075 and AA6061 aluminum alloys.…”

Influence of the Treatment Time on the Surface Chemistry and Corrosion Behavior of Cerium-Based Conversion Coatings on the AZ91D Magnesium Alloy

“…Coating integrity can play a dominant role. The presence of more defective surfaces is reported to increase with the treatment time for different types of coatings such as hydroxyapatite layers obtained by dip coating 49 and sputtered cerium oxide films 50 This effect lead to a defective barrier against electrolyte penetration, thus leading to higher corrosion rates when the thicker, defective coating is compared with a more compact and thinner surface. In this respect, coating morphology would be of prime importance to the corrosion behavior of the conversion coatings obtained in the present work.…”

In Situ Preparation and Corrosion Resistance of a ZrO2 Film on a ZrB2 Ceramic

“…Although many studies [34][35][36] have reported such corrosion behaviors of films or coatings dominated by the corrosion inhibition, the research about the effects of the film thickness is not sufficient and clear [37,38]. The corrosion inhibition might result from the corrosion product, which acts as an inhibitor absorbed on the active sites [19,39].…”