Corrosion inhibition of aluminum 6063 using some pharmaceutical compounds

Fouda, A. S.; Al-Sarawy, A. A.; Ahmed, F. Sh.; El-Abbasy, H. M.

doi:10.1016/j.corsci.2008.10.012

Cited by 105 publications

(18 citation statements)

References 15 publications

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“…The apparent activation energy at 5 9 10 -5 M from the investigated compounds was calculated by linear regression between ln R corr and (1/T) ( The activation energy is higher in the presence of additives than in their absence. Similar results were obtained by other authors [25,[28][29][30]. The higher values of E Ã a are good evidence for the strong adsorption of 3-thiazinonyl-bicyclo[4.2.0]octene-carboxylate derivatives on the steel surface.…”

Section: Effect Of Temperaturesupporting

confidence: 92%

Antibacterial drugs as inhibitors for the corrosion of stainless steel type 304 in HCl solution

2009

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The effect of three antibacterial drugs (3-thiazinonyl-bicyclo [4.2.0] octene-carboxylate derivatives) on the corrosion behavior of stainless steel type 304 in 1.0 M HCl solution has been investigated using weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) techniques. The inhibition efficiency increased with increase in inhibitor concentration but decreased with increase in temperature. The thermodynamic functions of corrosion and adsorption processes were evaluated. The potentiodynamic polarization measurements indicated that the inhibitors are of mixed type. The adsorption of these inhibitors was found to obey Langmuir's adsorption isotherm. Synergism between iodide ion and inhibitors was proposed. The inhibitive action was satisfactory explained by using both thermodynamic and kinetic models. The results obtained from the three different techniques were in good agreement.

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Section: Effect Of Temperaturesupporting

confidence: 92%

Antibacterial drugs as inhibitors for the corrosion of stainless steel type 304 in HCl solution

2009

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“…[1][2][3][4][5] Aliphatic and aromatic amines as well as nitrogen heterocyclic compounds were studied as corrosion inhibitors for dissolution of Al in acidic media. [6][7][8][9][10][11][12][13][14] Generally, it has been assumed that the first stage in the action mechanism of the inhibitors in aggressive acid media is the adsorption of the inhibitors onto the metal surface. The processes of adsorption of inhibitors are influenced by: i-the nature and surface charge of the metal ii-the chemical structure of organic inhibitors iii-the distribution of charge in the molecule ivthe type of aggressive electrolyte and iiv-the type of interaction between organic molecules and the metal surface.…”

Section: Introductionmentioning

confidence: 99%

Effect of β-Blocker Inhibitors on Aluminum Corrosion

Fouda¹,

Elewady²,

Shalabi³

2011

Journal of the Korean Chemical Society

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ABSTRACT. Corrosion of aluminum in 0.1 M HCl solution in the absence and presence of β-blocker inhibitors (atenolol, propranolol, timolol and nadolol) was investigated using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The inhibition efficiency increased with inhibitor concentration and decreased with rise of temperature. Potentiodynamic polarization curves revealed that they acted as cathodic inhibitors. Some thermodynamic parameters were calculated and discussed. All inhibitors were adsorbed on Al surface obeying Frumkin isotherm. All EIS tests exhibited one capacitive loop which indicates that the corrosion reaction is controlled by charge transfer process. The inhibition efficiencies of all test methods were in good agreement.

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“…Owing to its wide applicability in industrial and everyday life, the electrochemical properties of aluminum and its alloys are the topics of many research studies. [1][2][3][4][5][6][7] However, corrosion is indeed one of the major problems affecting the performance and safety of the metal. Several methods have been devised for preventing or reducing corrosion, which include metal coating, inorganic coating, painting, as well as use of chemical inhibitors.…”

Section: Introductionmentioning

confidence: 99%

3-Methyl-4-amino-5-mercapto-1,2,4-triazole as corrosion inhibitor for 6061 Al alloy in 0.5 M sodium hydroxide solution

2011

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3-Methyl-4-amino-5-mercapto-1,2,4-triazole (MAMT) was synthesized, and its inhibition action on the corrosion of 6061 Al alloy in 0.5 M sodium hydroxide was investigated by means of potentiodynamic polarization and electrochemical impedance spectroscopy techniques. The effect of inhibitor concentration, temperature, and concentration of the corrosion medium on the inhibitor action was investigated. The surface morphology of the metal surface was investigated by scanning electron microscopy (SEM). The inhibition efficiency increased with the increase in the concentration of the inhibitor, but decreased with the increase in temperature. Both thermodynamic and kinetic parameters were calculated and discussed. The adsorption of MAMT on the base alloy was found to be through physisorption, obeying Langmuir's adsorption isotherm. The results obtained from both the techniques were in good agreement with each other.

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Corrosion inhibition of aluminum 6063 using some pharmaceutical compounds

Cited by 105 publications

References 15 publications

Antibacterial drugs as inhibitors for the corrosion of stainless steel type 304 in HCl solution

Antibacterial drugs as inhibitors for the corrosion of stainless steel type 304 in HCl solution

Effect of β-Blocker Inhibitors on Aluminum Corrosion

3-Methyl-4-amino-5-mercapto-1,2,4-triazole as corrosion inhibitor for 6061 Al alloy in 0.5 M sodium hydroxide solution

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