CORROSION MONITORING OF COLORED ANODIZED ALUMINUM USING FREQUENCY ELECTROCHEMICAL NOISE AND FFT IMPEDANCE MEASUREMENT METHODS

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NOUROUZI PARVIZ; MOGHADESI M.; GANJALI M.R.; MOKHTARI B.; GANDOMKAR F.

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Paper Information

Journal: IRANIAN INTERNATIONAL JOURNAL OF SCIENCE Year:2003 | Volume:4 | Issue:2 Page(s): 165-180

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Title

CORROSION MONITORING OF COLORED ANODIZED ALUMINUM USING FREQUENCY ELECTROCHEMICAL NOISE AND FFT IMPEDANCE MEASUREMENT METHODS

Author(s)

NOUROUZI PARVIZ | MOGHADESI M. | GANJALI M.R. | MOKHTARI B. | GANDOMKAR F.

Keywords

ERIOCHROM

ALUMINUM OXIDE

ALUMINUM COLORING

ANODIZING

NOISE ANALYSIS FFT IMPEDANCE

CYCLIC VOLTAMMETRY

Abstract

In this work, aluminum electrode was colored with ERIOCHROM black, using frequency electrochemical noise analysis technique of the FFT impedance response, corrosion resistance of the colored electrode in 0.1 M sulfuric acid solution have been investigated. Scanning Electron Microcopy, also used for monitoring the electrodes surfaces. The electrochemical NOISE ANALYSIS FFT IMPEDANCE measurements showed that under some applied conditions, coloring aluminum with ERIOCHROM black could reduce corrosion resistance of aluminum. Where it was realized that application a potential ramp (in range of 0 to 3000 mV) produces an oxidation response associated with a significant noise in the FFT spectrum for the colored aluminum. The noise magnitude in the spectrum strongly depends on the applied conditions during ANODIZING, coloring and sealing stages. The noise analysis of the impedance and SEM images of the surface colored aluminum, showed a correlation between the number of pitting and the noise in the impedance of the surface.

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APA: Copy

NOUROUZI, PARVIZ, GANJALI, M.R., MOKHTARI, B., GANDOMKAR, F., & MOGHADESI, M.. (2003). CORROSION MONITORING OF COLORED ANODIZED ALUMINUM USING FREQUENCY ELECTROCHEMICAL NOISE AND FFT IMPEDANCE MEASUREMENT METHODS. IRANIAN INTERNATIONAL JOURNAL OF SCIENCE, 4(2), 165-180. SID. https://sid.ir/paper/271934/en

Vancouver: Copy

NOUROUZI PARVIZ, GANJALI M.R., MOKHTARI B., GANDOMKAR F., MOGHADESI M.. CORROSION MONITORING OF COLORED ANODIZED ALUMINUM USING FREQUENCY ELECTROCHEMICAL NOISE AND FFT IMPEDANCE MEASUREMENT METHODS. IRANIAN INTERNATIONAL JOURNAL OF SCIENCE[Internet]. 2003;4(2):165-180. Available from: https://sid.ir/paper/271934/en

IEEE: Copy

PARVIZ NOUROUZI, M.R. GANJALI, B. MOKHTARI, F. GANDOMKAR, and M. MOGHADESI, “CORROSION MONITORING OF COLORED ANODIZED ALUMINUM USING FREQUENCY ELECTROCHEMICAL NOISE AND FFT IMPEDANCE MEASUREMENT METHODS,” IRANIAN INTERNATIONAL JOURNAL OF SCIENCE, vol. 4, no. 2, pp. 165–180, 2003, [Online]. Available: https://sid.ir/paper/271934/en

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