Corrosion behaviour of aluminium in hydrochloric acid (HCl) solution containing mercaptoacetic acid

Abiola, Olusegun K.; Oforka, N. C.; Angaye, S. S.

doi:10.1016/j.matlet.2004.06.043

Cited by 33 publications

(21 citation statements)

References 13 publications

(11 reference statements)

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“…Possible mechanisms include: microgalvanic coupling between the matrix and reinforcement or between the matrix and intermetallics, failure of the protective oxide film due to micro-segregation of the alloying elements or micro-crevices at the matrix-reinforcement interface [13]. When the composites are fabricated by the melt route then degradation mechanism might take place, especially for light metals such as Mg. Also there is a possibility of degradation of SiC [8]; this is related to the potential attack of SiC by liquid aluminum and the subsequent degradation according to the following reactions [15]:…”

Section: Resultsmentioning

confidence: 99%

“…In its original form the pre-exponential factor A and the activation energy E a are considered to be temperature-independent. The rate constants can be calculated according to the following equation [13]:…”

Section: Thermodynamics Of Corrosionmentioning

confidence: 99%

“…Using inhibitors and protective layers to improve corrosion resistance of aluminum have been investigated thoroughly. For example, the effect of inhibitors and accelerators on the reaction kinetics of corrodent solutions was studied by Abiola et al [13] who examined the effect of mercaptoacetic acid (MCA), on the corrosion behaviors of aluminum alloy in hydrochloric acid solutions. They found that mercaptoacetic acid acts as corrosion accelerator of aluminum in HCl solutions.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Copper and Silicon Carbide Content on the Corrosion Resistance of Al-Mg Alloys in Acidic and Alkaline Solutions

Mayyas¹,

Hamasha²,

Alrashdan³

et al. 2012

JMMCE

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Section: Resultsmentioning

confidence: 99%

Section: Thermodynamics Of Corrosionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Copper and Silicon Carbide Content on the Corrosion Resistance of Al-Mg Alloys in Acidic and Alkaline Solutions

Mayyas¹,

Hamasha²,

Alrashdan³

et al. 2012

JMMCE

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show abstract

“…Corrosion tests can often be done in many ways, such as in chloride containing solution [78,79,80], in hydrochloric acid (HC1) [81], Na 2 HPO 4 , NaHCO 3 , KC1 solution [82], deionized water et al [83], etc., depending on the kind of intended application. In addition, corrosion resistance phenomenon can also be monitored via weight loss measurements [84,85,86] and neutron reflectivity [87].…”

Section: Corrosion Properties Of Superhydrophobic Surfacesmentioning

confidence: 99%

Protection of metal and alloy surfaces using corrosion resistance nanostructured superhydrophobic coatings /

Huang¹

2012

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Dans notre travail actuel, le processus de fabrication de surfaces de cuivre superhydrophobe est simplifié en une simple étape. L'application d'une tension continue entre deux plaques de cuivre immergé dans une solution diluée d'acide stéarique éthanolique transforme la surface de l'électrode de cuivre anodique en superhydrophobe due à la formation de micronano fibres de stéarate de cuivre à faible énergie de surface, tel que confirmé par rayons X diffraction (XRD) et microscopie électronique à balayage (MEB). L'augmentation du potentiel de modification, ainsi que la temps de modification conduit à l'augmentation de la valeur de la faible énergie de surface des micronanostructures ainsi que l'augmentation de la superhydrophobicité des surfaces telle que mesurée par l'angle de contact de l'eau. ABSTRACTSuperhydrophobic surfaces, which demonstrate high water-repellency, have recently become a very popular field because of its scientific and technological importance and wide range of applications in diverse areas. Preparation of nanostructured superhydrophobic surfaces requires both an optimum roughness and low surface energy; therefore, superhydrophobic surfaces are conventionally prepared employing two steps: roughening a surface and lowering its surface energy.In our present work, the fabrication process of superhydrophobic copper surfaces is simplified as just one-step. The application of a direct voltage between two copper plates immersed in a dilute ethanolic stearic acid solution transforms the surface of the anodic copper electrode to superhydrophobic due to the formation of micro-nanofibors low surface energy follower-like copper stéarate as confirmed by X-ray diffraction (XRD) and scanning electron microscope (SEM), respectively. The increase of the modification potential as well as the modification time leads to the increase of the amount of the low surface energy micro-nanostructures as well as the increase of the superhydrophobicity of the surfaces as measured by water contact angle.The nanostructured superhydrophobic aluminum alloy surfaces have also been prepared by the similar procedure as it was performed on copper surfaces. However, stearic acid modified aluminum alloy surfaces didn't show the superhydrophobic properties. Therefore, the aluminum surfaces were firstly coated with copper films followed by electrochemical modification with stearic acid solution. The copper grows as microdots on AA6061 Al alloy surfaces. The surface densities of the microdots increase with the increase of the negative deposition potentials. On the other hand their sizes as well as the distances between the microdots reduce with the increase of the negative deposition potentials. The surface roughness and water contact angle of electrodeposited copper film followed by electrochemical modification in ethanolic stearic acid solution increase with the increase in negative copper deposition potentials. The stearic acid modified copper films deposited at -0.6 V provides a surface roughness of 6.2 /un with a water contact a...

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“…The inhibiting action of organic compounds has been mainly attributed to adsorption of the compound on the surface of the material. This adsorption affects the electrochemical behavior involved in the corrosion process of metals/alloys/composites [7][8][9] . The inhibition effect of 3 -methyl -4 -amino -5 -mercapto -1,2,4 -triazole on the corrosion behavior of 6061 Al alloy/SiCp composite has been reported 10 .…”

Section: Introductionmentioning

confidence: 99%

THE INHIBITION ACTION OF ETHYL-2-PHENYL HYDROZONO-3-OXOBUTYRATE ON THE CORROSION OF 6061 Al ALLOY/SiCp COMPOSITE IN HYDROCHLORIC ACID MEDIUM

Kini

Shetty

et al. 2010

J. Chil. Chem. Soc.

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The inhibition behavior of ethyl-2-phenyl hydrozono-3-oxobutyrate on the corrosion of 6061 Al alloy/SiCp composite in 0.1, 0.5 and 1 N hydrochloric acid solution at four different temperatures (30-60 °C) has been investigated using potentiostatic polarization techniques and weight loss method. The results indicated that the corrosion inhibition efficiency and the extent of surface coverage were increased with the increase in inhibitor concentration up to a critical concentration. The adsorption of the inhibitor compound on the composite surface was found to obey Temkins' and Langmuir adsorption isotherms. The potentiostatic polarization results have revealed that oxobutyrate acts as an efficient cathodic inhibitor for the corrosion of 6061 Al alloy/SiCp composite in HCl medium. The thermodynamic parameters for the corrosion and adsorption processes were determined.

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Corrosion behaviour of aluminium in hydrochloric acid (HCl) solution containing mercaptoacetic acid

Cited by 33 publications

References 13 publications

Effect of Copper and Silicon Carbide Content on the Corrosion Resistance of Al-Mg Alloys in Acidic and Alkaline Solutions

Effect of Copper and Silicon Carbide Content on the Corrosion Resistance of Al-Mg Alloys in Acidic and Alkaline Solutions

Protection of metal and alloy surfaces using corrosion resistance nanostructured superhydrophobic coatings /

THE INHIBITION ACTION OF ETHYL-2-PHENYL HYDROZONO-3-OXOBUTYRATE ON THE CORROSION OF 6061 Al ALLOY/SiCp COMPOSITE IN HYDROCHLORIC ACID MEDIUM

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