The influence of rare earth mercaptoacetate on the initiation of corrosion on AA2024-T3 Part I: Average statistics of each intermetallic composition

Catubig, Rainier; Hughés, A.E.; Cole, Ivan; Chen, F.F.; MacRae, Colin M.; Wilson, Nicholas C.; Glenn, A.M.; Hinton, Bruce; Forsyth, Maria

doi:10.1016/j.corsci.2015.01.056

Cited by 20 publications

(8 citation statements)

References 39 publications

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“…39 Catubig et al used rare earth mercaptoacetate inhibitors on AA2024. 40 The praseodymium mercaptoacetate was found to reduce the average corrosion current density to a greater extent that cerium mercaptoacetate. 40 In addition to acetate, other organic cerium salts, namely cerium dibuthyl phosphate, was investigated.…”

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confidence: 95%

“…40 The praseodymium mercaptoacetate was found to reduce the average corrosion current density to a greater extent that cerium mercaptoacetate. 40 In addition to acetate, other organic cerium salts, namely cerium dibuthyl phosphate, was investigated. 42 Compared to CeCl 3 , cerium dibuthyl phosphate offered a combined effect due to cerium oxide formation on Cu-rich areas and dibuthylphosphate on the overall surface with no preferential deposition.…”

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confidence: 95%

“…19 The effect of anions such as SO 4 2− , has only rarely been considered 24,38 and that of acetate anion are scarce. 8,33,[39][40][41] Mansfeld and Wang 33 used immersion in hot cerium acetate as a first step of the surface modification process of AA2024. Sugama modified aminopropylsilane triol by using Ce acetate and as a dopant in the concentration range from 0.2 to 10 wt%.…”

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confidence: 99%

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Corrosion Inhibition of Pure Aluminium and Alloys AA2024-T3 and AA7075-T6 by Cerium(III) and Cerium(IV) Salts

Rodič

Milošev

2015

J. Electrochem. Soc.

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The corrosion protection of pure aluminium and its alloys AA2024-T3 and AA7075-T6 has been studied in 0.1 M NaCl with and without the addition of Ce(III) chloride, Ce(III) nitrate, Ce(III) acetate and Ce(IV) sulfate. The study of Ce(III) acetate has been scarce but is here shown to be the most effective of the cerium salts studied, especially for AA7075-T6. The inhibition effectiveness of cerium salts is: Ce(III) acetate > Ce(III) chloride > Ce(III) nitrate for the metals studied. Ce(IV) sulfate does not inhibit corrosion. Electrochemical potentiodynamic measurements were used to investigate the mechanism of inhibition by cerium salts. Immersion tests in 0.1 M NaCl, with and without the addition of Ce(III) chloride and Ce(III) acetate, were performed to determine the effects of the inhibitors on the extent of corrosion damage at the surface of all three metals. For pure aluminium the inhibitory effectiveness was 78.5%, 82.6% and 84.0% in the presence of 3 mM Ce(III) nitrate, chloride and acetate, respectively. Aluminium and its alloys 2024-T3 (AA2024-T3) and 7075-T6 (AA7075-T6) generally have good resistance to corrosion under atmospheric conditions. They are used as construction materials, primarily in aircraft applications, because of their physical characteristics such as rigidity and high strength-to-weight ratio.1,2 The main differences between aluminium and its alloys lie in their mechanical and corrosion properties. Aluminium is cold worked, whereas AA2024-T3 and AA7075-T6 are heat treated and cold worked (T3) or artificially aged (T6). The reason for alloying aluminium is to increase strength by forming intermetallic particles, IMs.

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Corrosion Inhibition of Pure Aluminium and Alloys AA2024-T3 and AA7075-T6 by Cerium(III) and Cerium(IV) Salts

Rodič

Milošev

2015

J. Electrochem. Soc.

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“…Their advantage is effectiveness, low toxicity [25,26] and economic competitiveness [27]. Some studies have shown synergy between rare earth salts and organic carboxylate compounds such as salicylate [6,28], cinnamate [29,30], octylthiopropionate [31], dibutyl phosphate [32], hexadecanoate [33], tartrate [34] and mercaptoacetate [35][36][37] in corrosion inhibition.…”

Section: Introductionmentioning

confidence: 99%

Synergistic inhibition of carbon steel corrosion in seawater by cerium chloride and sodium gluconate

et al. 2015

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“…Conventional protection methods such as anodizing and rare earth conversion films and inhibitors have been applied to protect aluminum alloys. The superhydrophobic process, which is regarded as one of the most promising surface treatments, has attracted considerable interest in recent years .…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Films with Enhanced Corrosion Resistance and Self-Cleaning Performance on an Al Alloy

Zeng

Zhou

et al. 2020

Langmuir

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In this article, a novel and facile method is used to construct superhydrophobic surfaces on aluminum alloys. A solution of aluminum chloride hexahydrate and N-dodecyltrimethoxysilane (DTMS) in ethanol was used as the electrolyte solution. The hydrolysis of DTMS was accelerated during the electrodeposition process, and the hydrolysate was bonded to a pretreated aluminum surface. The prepared aluminum alloy sample exhibits both superhydrophobicity (the surface water contact angle reached 155°) and excellent corrosion resistance. The inhibition efficiency of this sample is as high as 99.9% in 3.5 wt % NaCl solution, which remains at 98% even after 30 days of immersion. Thus, our fabrication can be well applied to the field of marine corrosion protection. Therefore, the working mechanism was discussed by confocal Raman microspectroscopy (CRM). In addition, the investigation by CRM and electrochemical impedance spectroscopy (EIS) also indicates that superhydrophobic samples show good stability in NaCl solution. The fabrication method can inspire new ideas for the construction of superhydrophobic aluminum alloys in the marine environment.

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The influence of rare earth mercaptoacetate on the initiation of corrosion on AA2024-T3 Part I: Average statistics of each intermetallic composition

Cited by 20 publications

References 39 publications

Corrosion Inhibition of Pure Aluminium and Alloys AA2024-T3 and AA7075-T6 by Cerium(III) and Cerium(IV) Salts

Corrosion Inhibition of Pure Aluminium and Alloys AA2024-T3 and AA7075-T6 by Cerium(III) and Cerium(IV) Salts

Synergistic inhibition of carbon steel corrosion in seawater by cerium chloride and sodium gluconate

Superhydrophobic Films with Enhanced Corrosion Resistance and Self-Cleaning Performance on an Al Alloy

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