Adsorption and Inhibitor Action of 4-(N,N-Dimethylamino) Benzaldehyde Thiosemicarbazone on 6061 Al/SiC Composite and its Base Alloy in Sulfuric Acid Medium

Pinto, Geetha Mable; Nayak, Jagannath; Shetty, A. Nityananda

doi:10.1080/15533174.2010.538023

Cited by 10 publications

(2 citation statements)

References 43 publications

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“…At the same time, O 2− or OH − ions formed at the oxide/electrolyte interface. Due to the overlapping processes or one process dominating the others, all of these processes may be represented by a single capacitive loop [22]. In the presence of Gt, the area covered by the HF loop and LF loop combined is more than in its absence, which might be due to Gt forming a barrier film on the composite surface, Due to ionic conduction in the oxide film, the aluminum oxide film is considered a parallel circuit of a resistor and a capacitor due to its dielectric characteristics [24,25].…”

Section: Electrochemical Impedance Spectroscopy (Eis) Studiesmentioning

confidence: 99%

Glutathione as green corrosion inhibitor for 6061Al-SiC(p) composite in HCl medium: electrochemical and theoretical investigation

Unnimaya

Shetty

Kumari

et al. 2022

J Solid State Electrochem

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This research deals with the inhibition activity of glutathione in 0.5 M HCl on the corrosion behavior of 6061Al-SiC(p) composite. Glutathione is an eco-friendly water-soluble inhibitor. Polarization results reveal the cathodic inhibitor behavior of glutathione (Gt). The inhibition performance of Gt increases by increasing its concentration and lowering the medium temperature. The decrease in the corrosion current density and increase in inhibition efficiency on increasing Gt concentration reveal the attenuation of composite corrosion. Experimental results indicate the mixed adsorption with predominantly physisorption of Gt molecules adsorption on the composite surface following Langmuir adsorption isotherm. The impedance measurements indicate the rise in polarization resistance with an increase in Gt concentration, showing the control of composite corrosion. The surface analysis of the corroded and inhibited composite samples using a scanning electron microscope and atomic force microscope supports Gt molecules’ adsorption. The quantum chemical calculations confirm the conclusions of the experimental studies.

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Section: Electrochemical Impedance Spectroscopy (Eis) Studiesmentioning

confidence: 99%

Glutathione as green corrosion inhibitor for 6061Al-SiC(p) composite in HCl medium: electrochemical and theoretical investigation

Unnimaya

Shetty

Kumari

et al. 2022

J Solid State Electrochem

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show abstract

“…Aluminium is first oxidised to Al + ion, which migrates towards the oxide/acid medium interface, forming Al 3+ ion and releasing O 2− or OH − ions. A single capacitive loop may represent these processes, because they overlap or one process dominates the others [21].…”

Section: Eis Resultsmentioning

confidence: 99%

2-Aminobenzothiazole as an efficient corrosion inhibitor of AA6061-T6 in 0.5 M HCl medium: electrochemical, surface morphological, and theoretical study

et al. 2022

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The inhibitive action of 2-aminobenzothiazole (ABT) on the corrosion of AA6061-T6 was evaluated in 0.5 M HCl by electrochemical techniques. The electrochemical results were validated by theoretical calculations using density functional theory (DFT). ABT showed a mixed inhibitor behaviour with 71–90% inhibition efficiency in the 1 × 10−4 to 1 × 10−3 M concentration range and at 303 to 323 K temperature. The inhibition power of ABT increases with its concentration and rise in the temperature of the medium. The polarization results showed a reduction in corrosion rate and improvement in inhibition performance on increasing ABT concentrations, which reveal the ABT's adsorption on the alloy. The evaluation of kinetic and thermodynamic results revealed that ABT inhibits the AA6061-T6 corrosion by mixed adsorption, following the Langmuir isotherm model. The observed increase in polarization resistance with increased ABT concentrations indicates the attenuation of AA6061-T6 deterioration. Furthermore, the corroded and inhibited specimen's surface scanning is performed to confirm the ABT's adsorption on the alloy sample by scanning electron microscopy (SEM) and atomic force microscopy (AFM) techniques. Graphical abstract

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Experimental and theoretical investigation on the anti-corrosive potential of potassium ethyl xanthogenate for corrosion of mild steel in acidic media

Fatima¹,

Shetty²,

Choudhuri³

et al. 2022

J Chem Sci

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Adsorption and Inhibitor Action of 4-(N,N-Dimethylamino) Benzaldehyde Thiosemicarbazone on 6061 Al/SiC Composite and its Base Alloy in Sulfuric Acid Medium

Cited by 10 publications

References 43 publications

Glutathione as green corrosion inhibitor for 6061Al-SiC(p) composite in HCl medium: electrochemical and theoretical investigation

Glutathione as green corrosion inhibitor for 6061Al-SiC(p) composite in HCl medium: electrochemical and theoretical investigation

2-Aminobenzothiazole as an efficient corrosion inhibitor of AA6061-T6 in 0.5 M HCl medium: electrochemical, surface morphological, and theoretical study

Experimental and theoretical investigation on the anti-corrosive potential of potassium ethyl xanthogenate for corrosion of mild steel in acidic media

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