Ce post-treatment for increased corrosion resistance of AA2024-T3 anodized in tartaric-sulfuric acid

Ramirez, Oscar Maurício Prada; Tunes, Matheus A.; Mennucci, Marina Martins; Starykevich, M.; Neves, Cristina S.; Ferreira, M. G. S.; Pogatscher, Stefan; Melo, Hercílio Gomes de

doi:10.1016/j.corsci.2022.110371

Cited by 17 publications

(20 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The fitting results for the HF capacitive loop also show that, as the structure of the protective system becomes more complex, the CPE exponent (n) moves away from the ideal unit value. Hence, a normal distribution of time constants within the coating thickness can be associated, as suggested by Hirschorn et al [93], an argument that has been recently used by Prada-Ramirez et al [55][56][57] to explain the impedance response of anodized Al as sealing occurs within the pores. It is important to emphasize that, as extensively discussed in the literature, the oxide layer on top of the Mg surface exposed to different electrolytes is composed of a porous, non-protective layer, mainly Mg(OH) 2 , on top of a thin MgO compact and protective layer [75,83,84].…”

Section: Eis Testsmentioning

confidence: 98%

See 1 more Smart Citation

Cerium conversion coating and sol-gel coating for corrosion protection of the WE43 Mg alloy

et al. 2022

Self Cite

View full text Add to dashboard Cite

Section: Eis Testsmentioning

confidence: 98%

“…The Ce conversion layer (CeP coating) was obtained by immersion of the surface-treated magnesium substrates for 2 min in a 50 mM Ce(NO 3 ) 3 .6 H 2 O + 10% v/v H 2 O 2 aqueous solution at (50 ± 2) °C, similar to post-treatments previously used for corrosion protection of aluminum alloys [55][56][57].…”

Section: Coatings Preparationmentioning

confidence: 99%

Cerium conversion coating and sol-gel coating for corrosion protection of the WE43 Mg alloy

et al. 2022

Self Cite

View full text Add to dashboard Cite

“…In this context, Arunnellaiappan et al [162] propose the formation of combined AAO/CeCC layers by applying PEO, combined with simultaneous electrophoresis of CeO 2 nanoparticles. Furthermore, the synergism between the CeCC layer and AAO sublayer, obtained under conventional conditions, was established by Andreeva et al [163], Kozhukharov et al [164], and confirmed by L. Selegård et al [165] and Ramirez et al [166].…”

Section: Application Of Cerium Oxide and Soluble Salts-based Material...mentioning

confidence: 79%

Innovative Applications of Cerium Oxide-Based Materials in Civil Engineering, Automation, and Energy Sectors

Kozhukharov,

Girginov,

Lilova

et al. 2024

Cerium - Chemistry, Technology, Geology, Soil Science and Economics

View full text Add to dashboard Cite

Cerium oxide materials exhibit remarkable properties, positioning them as highly effective, environmentally friendly solutions across diverse applications. This chapter provides a comprehensive overview of fundamental concepts and technological methodologies related to cerium oxide (CeO2) and doped ceria-based materials. Emphasis is placed on electrochemical deposition, spray pyrolysis, and the sol-gel approach for synthesizing thin and thick layers of ceria. The versatility of these materials is explored, spanning from corrosion protection layers and specialized ceramic elements for sensor applications to components for solid oxide fuel cells (SOFCs) and electrodes for water-splitting cells. Additionally, the chapter delves into the promising applications of recently developed ceria-based nanomaterials in various fields, marking some advanced methods for CeO2-based materials synthesis. The key findings are succinctly summarized in the concluding section.

show abstract

“…Over time, different methods and techniques have been developed to control corrosion in metals, such as chrome plating 10 and anodizing 11,12 stand out as solutions for the control of this problem. Currently, the most studied methods are chromium conversion layers (CCL) 13 or chromic acid anodizing (CAA) 12 , and tartaric sulfuric acid anodizing (TSA) 14 . However, these solutions are potentially toxic to the environment and even to human health since, in their processes, they use Cr(VI), which is highly noxious and has carcinogenic properties 15,16 .…”

Section: Study Of the Anticorrosive Behavior Of Samarium As A Corrosi...mentioning

confidence: 99%

Study of the anticorrosive behavior of samarium as a corrosion inhibitor in multilayer systems for aluminum alloy

Mendez

Rojas

Bueno

et al. 2023

Sci Rep

View full text Add to dashboard Cite

This study shows a multilayer system based on samarium compounds as a corrosion inhibitor and a continuous SiO2 layer by atmospheric pressure plasma jet (APPJ) as a protective barrier for aluminim alloy AA3003. One of the main advantages of this new coating is that it does not require vacuum chambers, which makes it easy to incorporate into production lines for automotive and aeronautical components, etc. The deposit of samarium corrosion inhibitor was carried out by two methods for comparison, the immersion method and a novel method to deposit corrosion inhibitor by APPJ. The multilayer system generated was homogeneous, continuous, adherent, and dense. The electrochemical behavior shows that the samarium compound was completely oxidized on coatings by the immersion method and favors corrosion. The APPJ deposition method shows a protective behavior against corrosion by both samarium compounds and silica depositions. XPS analyses show that the amount of Sm(OH)3 increases by the APPJ method compared with the immersion method since the spectrum of O1s is mainly controlled by OH. It was determined that the best processing times for the electrochemical study of the multilayer system were 40 min for the immersion method and 30 s for the APPJ method for the layer of corrosion inhibitor. In the case of the SiO2 barrier layer by APPJ, the best time was 60 s of exposure to the plasma jet and this coating could reduce the corrosion of AA3003 by 31.42%.

show abstract

Ce post-treatment for increased corrosion resistance of AA2024-T3 anodized in tartaric-sulfuric acid

Cited by 17 publications

References 68 publications

Cerium conversion coating and sol-gel coating for corrosion protection of the WE43 Mg alloy

Cerium conversion coating and sol-gel coating for corrosion protection of the WE43 Mg alloy

Innovative Applications of Cerium Oxide-Based Materials in Civil Engineering, Automation, and Energy Sectors

Study of the anticorrosive behavior of samarium as a corrosion inhibitor in multilayer systems for aluminum alloy

Contact Info

Product

Resources

About