Film formation in Y(4NO 2 Cin) 3 compound on 6061 aluminum alloy to protect against corrosion in chloride ion media

Nam, Nguyễn Đăng; Hung, Tzu-Cheng; Ngan, Do Thi Thuy; Hung, Nguyen Le; Hoi, T. K. N.

doi:10.1016/j.jtice.2016.08.005

Cited by 13 publications

(5 citation statements)

References 26 publications

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“…The mechanism of such inhibitors, in short, is the constitution of a protective layer onto steel surfaces to separate the corrosive medium and the metal substrate, which was revealed by previous articles [ 23 , 24 ]. Investigation of this layer requires modern techniques such as electrochemical analysis to figure out the formation process along with the attributes of the protective film.…”

Section: Introductionmentioning

confidence: 99%

A Study on Corrosion Inhibitor for Mild Steel in Ethanol Fuel Blend

Hiến

Man

et al. 2017

Materials

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The main aim of this study is to investigate Aganonerion polymorphum leaf-ethyl acetate extract (APL-EAE) and its inhibiting effect for steel in ethanol fuel blend. The immersion test, electrochemical and surface analysis techniques were successfully carried out in this research. Scanning electron microscope images indicated that the ethanol fuel blend induced pitting corrosion of steel. Remarkably, the surface of the sample containing 1000 ppm APL-EAE is smoother than the others submerged in different conditions. The electrochemical impedance spectroscopy result shows that APL-EAE has formed a good protective layer, preventing corrosive factors from hitting the steel surface. The potentiodynamic polarization data argue that the corrosion inhibition efficiency was strengthened with the increase of APL-EAE concentration. The Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy demonstrated less intensity of Fe peaks, higher intensity of C1s peak and the appearance of organic peaks (N1s, P2p, O1s) from specimens with and without APL-EAE addition. Therefore, the results suggest the formation of the protective film on steel surface and affirm that APL-EAE has served as an effective corrosion inhibitor for steel in ethanol fuel blend.

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Section: Introductionmentioning

confidence: 99%

A Study on Corrosion Inhibitor for Mild Steel in Ethanol Fuel Blend

Hiến

Man

et al. 2017

Materials

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“…These phenomena are attributed to the presence of the mixed metal 4-nitrocinnamate species in the protective film on the steel surface, acting as barrier layer to mitigate the general and localized corrosions. Therefore, the interaction of hydrated iron oxide/hydroxide with 4-nitrocinnamate and yttrium oxide/hydroxide precipitation on the steel surface promoted the formation of an adherent, continuous protective layer, resulting in general and localized corrosion inhibition [17][18][19]. …”

Section: Resultsmentioning

confidence: 99%

“…We have recently developed the new yttrium 4-nitrocinnamate -Y(4NO 2 Cin) 3 -to replace chromate, molybdate, imidazoline and its derivative technologies [17][18][19]. While corrosion inhibition itself is not new, there has been little study on inhibitor properties using new electrochemical techniques such as the wire beam electrode to measure and evaluate the information regarding localized corrosion inhibition.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Localized Corrosion Inhibition for Mild Steel in Saline Solution

Nam

Hiến

Vaka³

2018

JST

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Abstract. In this study, 0.45 mM yttrium 4-nitrocinnamate (Y(4NO 2 Cin) 3 ) embedded in various aqueous chloride solutions, which has been studied as a possible localized corrosion inhibition system using electrochemical techniques and surface analysis. Furthermore, a wire-beam electrode (WBE) exposed to NaCl solutions containing Y(4NO 2 Cin) 3 compound. The results indicated the possible application of a WBE in simulating and monitoring the localized corrosion inhibition. Moreover, Y(4NO 2 Cin) 3 compound showed an excellent localized corrosion inhibition at 0.01 M due to high inhibition performance and good protective film formation. It also indicated that addition of 0.45 mM Y(4NO 2 Cin) 3 compound increased the localized corrosion inhibition with a decrease of the Cl¯ ion concentration in the investigated solutions. A new method of localized corrosion inhibition estimation has been developed using a WBE which shows a consistent result with electrochemical and surface analysis data. In addition, other electrochemical techniques and surface analysis are also used for not only ensuring but also confirming the localized corrosion inhibition.

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“…This application of the alloy is threatened by pitting corrosion, which occurs due to the metal’s reaction with chloride ions in the marine environment. Several studies [ 4 , 5 , 6 , 7 , 8 ] have proposed that the formation of a protective layer on the AA5083 surface, as in the case of other aluminum alloys, provides better corrosion resistance by preventing its dissolution in the corrosive electrolyte.…”

Section: Introductionmentioning

confidence: 99%

Developing Improved Corrosion-Resistant AA5083—BN/WC Composites for Tribological Applications

et al. 2023

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In this study, corrosion-resistant AA5083—BN/WC composites were developed for tribological applications through adequate control of the reinforcement content (WC and BN) in the matrix (AA5083 alloy). The effects of 6% and 12% tungsten carbide (WC) as well as 6% and 12% boron nitride (BN) additions on the corrosion behavior of AA5083 aluminum composite in 3.5% NaCl solution were carried out. Electrochemical techniques such as cyclic potentiodynamic polarization (CPP), changes in the chronoamperometric current with time (CCT), and electrochemical impedance spectroscopy (EIS) were utilized. The polarization results showed that the addition of 6% WC to the AA5083 alloy matrix improved its resistance to corrosion (RP). Rp exhibited an additional increase by adding 12% WC to the matrix. The values of RP were observed to increase for the AA5083 composite when adding 6% BN, and the highest RP values were recorded for the composite that contains 12% BN. The results obtained by the CPP method were confirmed by CCT and EIS measurements, where the presence of WC and BN protected the developed AA5083- BN/WC composites against corrosion. The corrosion resistance revealed an additional improvement with an increase in WC and BN content from 6% to 12%. The results also confirm that pitting corrosion decreased in the presence of WC and BN in the fabricated composites.

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Film formation in Y(4NO 2 Cin) 3 compound on 6061 aluminum alloy to protect against corrosion in chloride ion media

Cited by 13 publications

References 26 publications

A Study on Corrosion Inhibitor for Mild Steel in Ethanol Fuel Blend

A Study on Corrosion Inhibitor for Mild Steel in Ethanol Fuel Blend

A Study on the Localized Corrosion Inhibition for Mild Steel in Saline Solution

Developing Improved Corrosion-Resistant AA5083—BN/WC Composites for Tribological Applications

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