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Roberge, P.R.; Lenard, D. R.

doi:10.1023/a:1003292406276

Cited by 14 publications

(2 citation statements)

References 17 publications

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“…For aluminum alloy systems, a constant phase element (CPE) instead of a pure capacitor is observed in the frequency domain. 18,19 Also, the potential curves obtained do not obey the exponential decay. Hence the non-ideal capacitance behavior must be included for the accurate measurement of time constant.…”

Section: Resultsmentioning

confidence: 90%

Communication—Local Electrochemical Study Using Droplet Cell Microscopy on a Rough Surface

Rajan

Neelakantan

2016

J. Electrochem. Soc.

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Conventional electrochemical measurements have been carried out using droplet cell microscopy for local area studies. This study overcomes the limitation of knowing accurately the exposed area and is proved by investigating the rough surface induced by wear. The galvanostatic pulse technique is used to determine the time constant which is independent of the area and also gives an indication of the corrosion rate. Worn and unworn surfaces of AA2014 in 0.1 M NaCl solution have been compared and the potential decay was faster for a worn surface than an unworn surface.

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Section: Resultsmentioning

confidence: 90%

Communication—Local Electrochemical Study Using Droplet Cell Microscopy on a Rough Surface

Rajan

Neelakantan

2016

J. Electrochem. Soc.

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“…A lot of investigations have experimented with materials such as steel [26,27], copper [28], or nickel [29], but the SPD methods have only recently been used for processing Al-Li alloys and, thus far, a few reports on their corrosion resistance in the passive state after SPD have been published. However, there are many articles about corrosion behavior of other aluminum alloys after SPD [30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Corrosion resistance of model ultrafine-grained Al–Li alloys produced by severe plastic deformation

et al. 2011

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The influence of grain boundaries and fine precipitation on the corrosion behavior was investigated in two model aluminum-lithium alloys, namely (in wt%) Al-1.6Li (lithium in a solid solution) and Al-2.3Li (lithium in the form of Al 3 Li precipitation), subjected to three different severe plastic deformation (SPD) treatments which refined the microstructure of the alloys to the ultrafine grain size. The SPD techniques used in the experiments were equal channel angular pressing (ECAP), hydrostatic extrusion (HE), and extrusion-torsion (ET). The corrosion behavior was examined using a potentiodynamic polarization test, electrochemical impedance spectroscopy, and an immersion test followed by a SEM surface analysis. The electrochemical tests were conducted in a 0.1 M Na 2 SO 4 solution added with 100 ppm of Cl -. The immersion tests (48 h) were performed in a 3.5% NaCl solution at room temperature. The results indicate that the pitting potential, pit number, and stability of the passive layer formed on the surface of the substrates undergo changes depending on the average grain size and the presence of precipitation or its lack. The corrosion resistance, examined in the solution mentioned above, appears to increase with decreasing average grain size. The ET method gave the microstructure with the lowest corrosion resistance.

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Analysis of Biocorrosion Electrochemical Noise Using Fractional Order Signal Processing Techniques

Sheng

Chen

Qiu

2012

Fractional Processes and Fractional-Order Signal Processing

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Untitled

Cited by 14 publications

References 17 publications

Communication—Local Electrochemical Study Using Droplet Cell Microscopy on a Rough Surface

Communication—Local Electrochemical Study Using Droplet Cell Microscopy on a Rough Surface

Corrosion resistance of model ultrafine-grained Al–Li alloys produced by severe plastic deformation

Analysis of Biocorrosion Electrochemical Noise Using Fractional Order Signal Processing Techniques

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