Characterization of cerium-based conversion coatings for corrosion protection of AISI-1010 commercial carbon steel

Onofre-Bustamante, E.; Domínguez‐Crespo, M.A.; Torres‐Huerta, A.M.; Olvera-Martínez, A.; Genescá-Llongueras, J.; Rodríguez-Gómez, Francisco Javier

doi:10.1007/s10008-009-0871-9

Cited by 47 publications

(22 citation statements)

References 37 publications

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“…The gradual increment of the impedance value with the exposure periods exhibited the formation of a protective passive oxide film on the coating surface. The increment in impedance values are attributed to the growth of passive film thickness and the increase in film resistance itself towards the penetration of aggressive ions through the film [42]. This finding also corroborates the results of the Nyquist plots.…”

Section: Electrochemical Impedance Spectroscopy (Eis) Evaluation Of Csupporting

confidence: 86%

Corrosion Resistance Properties of Aluminum Coating Applied by Arc Thermal Metal Spray in SAE J2334 Solution with Exposure Periods

Lee

Singh

Ismail

et al. 2016

Metals

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Arc thermal metal spray coating provides excellent corrosion, erosion and wear resistance to steel substrates. This paper incorporates some results of aluminum coating applied by this method on plain carbon steel. Thereafter, coated panels were exposed to an environment known to form stable corrosion products with aluminum. The coated panels were immersed in Society of Automotive Engineers (SAE) J2334 for different periods of time. This solution consists of an aqueous solution of NaCl, CaCl 2 and NaHCO 3 . Various electrochemical techniques, i.e., corrosion potential-time, electrochemical impedance spectroscopy (EIS) and the potentiodynamic were used to determine the performance of stimulants in improving the properties of the coating. EIS studies revealed the kinetics and mechanism of corrosion and potentiodynamic attributed the formation of a passive film, which stifles the penetration of aggressive ions towards the substrate. The corrosion products that formed on the coating surface, identified using Raman spectroscopy, were Dawsonite (NaAlCO 3 (OH) 2 ) and Al(OH) 3 . These compounds of aluminum are very sparingly soluble in aqueous solution and protect the substrate from pitting and uniform corrosion. The morphology and composition of corrosion products determined by scanning electron microscopy and energy dispersive X-ray analyses indicated that the environment plays a decisive role in improving the corrosion resistance of aluminum coating.

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Section: Electrochemical Impedance Spectroscopy (Eis) Evaluation Of Csupporting

confidence: 86%

Corrosion Resistance Properties of Aluminum Coating Applied by Arc Thermal Metal Spray in SAE J2334 Solution with Exposure Periods

Lee

Singh

Ismail

et al. 2016

Metals

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“…This phenomenon can be controversial, since it may also result in the formation of subsurface crevices 24 . However, formation of subsurface crevices usually happens with a combination of NaCl and H2O2 in the solution 11 . Results of EDXS analysis in the eutectic region which contains some iron-rich IM particles are presented in Fig.…”

Section: Morphology and Compositionmentioning

confidence: 99%

“…Studies like the one of Olivier et al 4 have shown that cerium-based conversion coatings (CeCC) can be the most effective ones compared to other lanthanide-based layers, such as yttrium and lanthanum. Deposition and corrosion properties of CeCC have been studied not only on aluminum alloys but also on other such as magnesium alloys [5][6][7][8] and steel [9][10][11][12] . Most of the research on CeCC on aluminum alloys has been widely focused on protection of high strength alloys with aerospace applications such as AA2024 [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] and AA7075 20,[33][34][35][36][37][38][39][40] .…”

Section: Introductionmentioning

confidence: 99%

Deposition and Characterization of Cerium-Based Conversion Coating on HPDC Low Si Content Aluminum Alloy

Eslami¹,

Fedel²,

Speranza³

et al. 2017

J. Electrochem. Soc.

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Cerium-based conversion coatings were deposited on high pressure die cast (HPDC) Al-Si alloys using an immersion method. Hydrogen peroxide and sodium chloride were added to the conversion solution to accelerate the coating formation and to understand its formation mechanism. These studies showed that the deposition of cerium hydroxide/oxide conversion layer starts from iron-rich intermetallic particles, which are located inside the eutectic region and then the coating growth continues to cover the entire alloy surface. This phenomenon passivates the active interfaces between iron-rich intermetallic particles and/or the eutectic silicon phase and the aluminum matrix, which are prone to localized corrosion in chloride ions containing environments. Accordingly, values of the total impedance in EIS measurements significantly increased for the treated substrates. Morphologies of the conversion coatings and the oxidation state of cerium compounds were found to be dependent on the composition of the solution and the presence of chloride ions and/or hydrogen peroxide. Aluminum alloy with higher silicon content showed a more active surface during immersion in the conversion solution. This makes it more difficult to be treated using aggressive conversion solutions.

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“…In aerated solution, freshly precipitated Ce(OH) 3 is readily oxidized by oxygen forming tetravalent ceric hydroxide Ce(OH) 4 , which further dehydrates to CeO 2 [48][49][50]:…”

Section: Resultsmentioning

confidence: 99%

Influence of cerium(III) ions on corrosion of TRIP 800 steel in hydrochloric acid solution

Rosalbino

Scavino

2016

Materials & Corrosion

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Ce(III) was studied for its corrosion inhibition property on the corrosion of TRIP 800 C‐Mn‐Si steel in 0.5 M hydrochloric acid at 25 °C by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. SEM was used to examine the specimen surface exposed to 0.5 M HCl containing the optimal threshold Ce(III) concentration (2.5 mM). A model for the corrosion process mechanism and inhibition by Ce(III) salt for TRIP 800 steel in the tested medium is proposed.

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Characterization of cerium-based conversion coatings for corrosion protection of AISI-1010 commercial carbon steel

Cited by 47 publications

References 37 publications

Corrosion Resistance Properties of Aluminum Coating Applied by Arc Thermal Metal Spray in SAE J2334 Solution with Exposure Periods

Corrosion Resistance Properties of Aluminum Coating Applied by Arc Thermal Metal Spray in SAE J2334 Solution with Exposure Periods

Deposition and Characterization of Cerium-Based Conversion Coating on HPDC Low Si Content Aluminum Alloy

Influence of cerium(III) ions on corrosion of TRIP 800 steel in hydrochloric acid solution

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