An evaluation of the anticorrosion effect of ethylene glycol for AA7075-T6 alloy in 3.5% NaCl solution

Gerengi, Hüsnü; Solomon, Moses M.; Kaya, Ertuğrul; Bagci, Fatma E.; Abai, Ekaette J.

doi:10.1016/j.measurement.2017.11.030

Cited by 21 publications

(4 citation statements)

References 35 publications

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“…The relationship between the C dl value and the thickness of the adsorbed layer on the Al surface is given by the following equation [ 56 , 57 ]:

where

is the thickness of the adsorbed layer on the metal surfaces,

represents the permittivity of air,

expresses the constant of local dielectric, and A is the surface area of the metal electrodes.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Corrosion Inhibition Potential of Cerium/Tetraethylenepentamine Dithiocarbamate Complex on AA2024-T3 in 3.5% NaCl

et al. 2022

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In this work, a cerium/tetraethylenepentamine dithiocarbamate complex was synthesized and evaluated for the corrosion inhibition capability on an AA2024-T3 Al alloy in a 3.5% NaCl medium. The synthesized compounds were characterized via spectroscopic techniques. The corrosion inhibition behaviour of the complex was elucidated by electrochemical measurements and surface analysis techniques. Based on electrochemical test results, the corrosion inhibition efficiency of the complex increases with the immersion time of aluminium alloy in the test solution. The corrosion inhibition reaches 96.80% when the aluminium is immersed in a 3.5% NaCl solution containing a corrosion inhibitor for 120 h. The potentiodynamic polarization test results show that the complex acts as a mixed-type corrosion inhibitor and the passive range is widened. The surface analysis methods reveal that the corrosion inhibition ability of the complex originated from the formation of a protective layer on the Al surface. This film is created from the physisorption and chemisorption of cerium ions and organic parts simultaneously released from the complex molecules.

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“…The relationship between the C dl value and the thickness of the adsorbed layer on the Al surface is given by the following equation [ 56 , 57 ]:

where

is the thickness of the adsorbed layer on the metal surfaces,

represents the permittivity of air,

expresses the constant of local dielectric, and A is the surface area of the metal electrodes.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Corrosion Inhibition Potential of Cerium/Tetraethylenepentamine Dithiocarbamate Complex on AA2024-T3 in 3.5% NaCl

et al. 2022

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“…Each sample of the experiment was carried out three times to ascertain reproducibility. Current density ( j corr ) as well as polarization potential ( E corr ), were extracted from the tafel plots and the percentage inhibition performance efficiency (IPE %) was computed using Equations 1 and 2 and the surface courage (Θ) was also computed from the values achieved from the tafel plot using Equations 1 and 2 corrosion results for the fabricated composite and the parent metal has been extracted while the open circuit potential and the tafel polarization curve was plotted from the extracted data , Table , Figure .

true θ = 1 - \frac{j_{c o r r}}{j_{0 c o r r}}

true I P E % = 1 - \frac{j_{c o r r}}{j_{0 c o r r}} \times 100

…”

Section: Resultsmentioning

confidence: 99%

Corrosion study and quantitative measurement of crystallite size of high strength aluminum hybrid composite developed via friction stir processing

Ikumapayi

Akinlabi

Majumdar

et al. 2020

Materialwissenschaft Werkst

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This present study is centered on the corrosion behaviors and structural integrity of high strength aluminum-alloy 7075-T651 hybridized with carbonaceous coconut shell ash (CSA) and α + β titanium alloy powder in ratio of 50 : 50, fabricated during friction stir processing (FSP). The study examined the base metal -AA7075-T651 as well as the friction stir processed AA7075-T651 as control experiments. The Processing parameters used were plunge depth of 0.3 mm, travel speed of 20 mm/min, the tilt angle of 3°and rotational speed of 1500 min À 1 . The corrosion characteristics were examined with the Potentiodynamic Polarization method in 3.5 % NaCl medium while crystalline phases were studied with x-ray diffraction (XRD). Results show that fabricated aluminum hybrid composite (AHC) AA7075-T651/coconut shell ash (CSA)/titanium-alloy has the highest percentage of inhibition performance efficiency (IPE) of 84.81 % resulting to 0.76938 mm/year corrosion rate and 356.51 Ω polarization resistance, whereas inhibition performance efficiency (IPE) for friction stir processed (FSPed) AA7075-T651 was 63.99 % while the base metal -AA7075-T651 was taken as the reference point. It was also revealed that the hybridized coconut shell ash (CSA)/titanium-alloy powder on AA7075-T651 enhanced the structural integrity, producing 38.5 nm crystallite size over friction stir processing (FSP) AA7075-T651 with 41.2 nm and the base metal with 48.7 nm crystallite size.High strength aluminum hybrid composite developed via friction stir processing Materialwiss. Werkstofftech. 2020, 51, 732-739

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“…Analysis of the polarization curves was carried out using the Gamry Echem Analyst program. For dynamic-EIS, the sampling frequency was 12.8 kHz, the perturbation signal was in the range of 4.5 kHz–300 mHz, and the measurement was carried out for 30 h. Detailed information on how the National Instruments Measurement Ltd. PCI-4461digital analogue card works can be found in our previous publications. − Each experiment was repeated three times, and the average values are presented in this work.…”

Section: Methodsmentioning

confidence: 99%

Chemical, Electrochemical, and Surface Morphological Studies of the Corrosion Behavior of the AZ31 Alloy in Simulated Body Fluid: Effect of NaOH and H₂O₂Surface Pretreatments on the Corrosion Resistance Property

et al. 2022

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Magnesium and its alloys have attracted attention for biomedical implant materials in dental and orthopedic applications because of their biodegradability and similar properties to human bones. The very high rate of degradation in the physiological systems is, however, a major setback to their utilization. Chemical modification is one of the approaches adopted to enhance the corrosion resistance property of Mg and its alloys. In this work, NaOH and H 2 O 2 were used as a pretreatment procedure to improve the corrosion resistance of the AZ31 Mg alloy in simulated body fluid (SBF). Advanced techniques such as dynamic electrochemical impedance spectroscopy (dynamic-EIS), atomic force microscopy, and optical profilometry were used in addition to the classical mass loss, hydrogen evolution, EIS, and polarization techniques to study the corrosion resistance property of the alloy in SBF for 30 h. Results obtained show that the surface treatment significantly enhanced the corrosion resistance property of the alloy. From dynamic-EIS at 30 h, the charge transfer resistance of the untreated AZ31 Mg alloy is 432.6 Ω cm 2 , whereas 822.7 and 2617.3 Ω cm 2 are recorded for NaOH- and H 2 O 2 -treated surfaces, respectively. H 2 O 2 is a better treatment reagent than NaOH. The mechanism of corrosion of both untreated and treated samples in the studied corrosive medium has been discussed.

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An evaluation of the anticorrosion effect of ethylene glycol for AA7075-T6 alloy in 3.5% NaCl solution

Cited by 21 publications

References 35 publications

Synthesis and Corrosion Inhibition Potential of Cerium/Tetraethylenepentamine Dithiocarbamate Complex on AA2024-T3 in 3.5% NaCl

Synthesis and Corrosion Inhibition Potential of Cerium/Tetraethylenepentamine Dithiocarbamate Complex on AA2024-T3 in 3.5% NaCl

Corrosion study and quantitative measurement of crystallite size of high strength aluminum hybrid composite developed via friction stir processing

Chemical, Electrochemical, and Surface Morphological Studies of the Corrosion Behavior of the AZ31 Alloy in Simulated Body Fluid: Effect of NaOH and H₂O₂Surface Pretreatments on the Corrosion Resistance Property

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An evaluation of the anticorrosion effect of ethylene glycol for AA7075-T6 alloy in 3.5% NaCl solution

Cited by 21 publications

References 35 publications

Synthesis and Corrosion Inhibition Potential of Cerium/Tetraethylenepentamine Dithiocarbamate Complex on AA2024-T3 in 3.5% NaCl

Synthesis and Corrosion Inhibition Potential of Cerium/Tetraethylenepentamine Dithiocarbamate Complex on AA2024-T3 in 3.5% NaCl

Corrosion study and quantitative measurement of crystallite size of high strength aluminum hybrid composite developed via friction stir processing

Chemical, Electrochemical, and Surface Morphological Studies of the Corrosion Behavior of the AZ31 Alloy in Simulated Body Fluid: Effect of NaOH and H2O2Surface Pretreatments on the Corrosion Resistance Property

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Chemical, Electrochemical, and Surface Morphological Studies of the Corrosion Behavior of the AZ31 Alloy in Simulated Body Fluid: Effect of NaOH and H₂O₂Surface Pretreatments on the Corrosion Resistance Property