Protection of copper by treatment with hot vapors of octadecylamine, 1,2,3‐benzotriazole, and their mixtures

Goncharova, O. A.; Andreev, N. N.; Luchkin, A. Yu.; Kuznetsov, Yu. I.; Andreeva, N. P.; Vesely, S.S.

doi:10.1002/maco.201810366

Cited by 24 publications

(32 citation statements)

References 21 publications

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“…The techniques for sample preparation and measurements, the purity of the compounds and the materials used in this study are similar to those reported previously [13].…”

Section: Methodsmentioning

confidence: 65%

“…The increase in ChIn efficiency with an increase in their p 0 values indicates that equilibrium adsorption of BTA derivatives on copper is not reached in 1 h of chamber treatment at 100°C. It should be reminded that the choice of this duration for the CT is based on data [13] that the PAE of BTA stabilizes after chamber treatment for 20-40 minutes. However, rather a narrow range of CT durations (up to 1 h) was considered in this study.…”

Section: Resultsmentioning

confidence: 99%

“…Electrochemical impedance parameters were calculated using the following equivalent circuit: Figure 1) that is characteristic of corrosion of copper and its alloys covered with an inhibitor [13,[38][39][40][41][42][43] (Figure 1): where R 0 is the solution resistance, C 1 is the double layer capacitance, R 1 is the charge transfer resistance, and Z is the impedance of the surface layers.…”

Section: Methodsmentioning

confidence: 99%

“…It has been shown [8][9][10][11][12][13][14] that films created on metal surfaces upon chamber treatment (CT) can ensure long-term protection from atmospheric corrosion even under drastic conditions. In this case:…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Triazole derivatives as chamber inhibitors of copper corrosion

2018

Int. J. Corros. Scale Inhib.

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A set of physicochemical (ellipsometry, wetting angle measurement), electrochemical (electrochemical impedance spectroscopy, electrochemical polarization measurements) and corrosion methods (recurrent moisture condensation conditions, salt fog) was used to study the properties of adsorption films formed on copper by the chamber method from benzotriazole (BTA), 1,2,4-1H-triazole (TZ), tolyltriazole (TTA), 5-chloro-1,2,3-benzotriazole (Cl-BTA), 3amino-1H-1,2,4-triazole and 4-amino-1H-1,2,4-triazole vapors at 100°C. It was shown that upon one-hour treatment of copper with vapors of these compounds, nanosized hydrophobic adsorption films were formed on it, which hindered the thermal oxide growth but stabilized the passive state of the metal and improved its corrosion resistance. Of various triazole derivatives studied as chamber corrosion inhibitors, BTA and its derivatives can be distinguished. After one-hour chamber treatment of copper, the protective after-effect of their adsorption films grows symbatically with the saturated vapor pressure at the CT temperature, i.e., in the series BTA > TTA > Cl-BTA. This may indicate that at 100°C, there is not enough time for the formation of equilibrium adsorption films on the metal. There are reasons to believe that upon prolonged copper treatment with vapors of substituted benzotriazoles (24 hours or more), equilibrium adsorption films of inhibitors are formed thereon. In this case, the character of the effect of the properties of chamber inhibitors on their protective after-effect changes. Under these conditions, the best metal protection is provided by Cl-BTA, i.e., the least volatile and most hydrophobic of the substituted benzotriazoles studied.

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“…The techniques for sample preparation and measurements, the purity of the compounds and the materials used in this study are similar to those reported previously [13].…”

Section: Methodsmentioning

confidence: 65%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Triazole derivatives as chamber inhibitors of copper corrosion

2018

Int. J. Corros. Scale Inhib.

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“…Development of the chamber treatment method was intensely performed for the past three years, and CINs suitable for the protection of monometallic products made of steel, copper, aluminum alloys, magnesium and zinc [4][5][6][7] have already been found. However, versatile CINs capable of simultaneously protecting several metals and alloys are not yet available.…”

Section: Introductionmentioning

confidence: 99%

IFKhAN-140, a chamber corrosion inhibitor for brass

2020

Int. J. Corros. Scale Inhib.

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A combination of accelerated electrochemical (potentiodynamic and impedance) and corrosion methods (performed under intense condensation of moisture and neutral salt fog), as well as outdoor tests were used to study the protective aftereffect of adsorption films formed on brass on exposure to a mixture of octadecylamine and benzotriazole (IFKhAN-140) at 100 and 120℃. It was shown that the components of IFKhAN-140 synergistically enhance the protective aftereffect of the adsorption layers. The protective aftereffect of the adsorbed inhibitor films is most pronounced at a chamber treatment temperature of 120℃, although at 100℃ the corrosion inhibition factors are also high. The protective properties of the inhibitor at the chamber treatment temperatures studied increase symbiotically with the treatment duration. However, chamber treatment for more than one hour leads to undesirable metal tarnishing. Using the ellipsometry method, it was found that the thickness of the surface films on brass that provides a significant increase in its corrosion resistance does not exceed 20 nm. The high protective properties of IFKhAN-140 toward steel, copper and brass at once allow it to be regarded as a formulation suitable for the protection of polymetallic products.

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Surface modification for Al alloy by volatile corrosion inhibitors from cyclohexylamine, octanoic acid, and their reaction product

Zhang

Gao

et al. 2021

Materials & Corrosion

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The protection for Al alloy is investigated through vapor phase assembly technology. The corrosion resistance performance of the assembled Al alloys is compared by the electrochemical measurements as well as hydrogen evolution test. The assembly sequence affects the protection of the complex films formed on Al alloy surface. It indicates that the complex films of base and acid assembly components have better protection effects. The reactivity between the assembly components and the formation mechanism of the complex films is analyzed. The alternative assembly of acid and base components enhances the anticorrosion ability of Al alloys and becomes the promising method for the use of the salt-type volatile corrosion inhibitor.

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Protection of copper by treatment with hot vapors of octadecylamine, 1,2,3‐benzotriazole, and their mixtures

Cited by 24 publications

References 21 publications

Triazole derivatives as chamber inhibitors of copper corrosion

Triazole derivatives as chamber inhibitors of copper corrosion

IFKhAN-140, a chamber corrosion inhibitor for brass

Surface modification for Al alloy by volatile corrosion inhibitors from cyclohexylamine, octanoic acid, and their reaction product

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