Corrosion study of Ni/Zn compositionally modulated multilayer coatings using electrochemical impedance spectroscopy |
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Authors: | M Rahsepar ME Bahrololoom |
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Affiliation: | aMaterials Science and Engineering Department, School of Engineering, Shiraz University, Shiraz 7134851154, Iran |
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Abstract: | Ni/Zn compositionally modulated multilayer (CMM) coatings were deposited using dual bath technique. Coatings corrosion performance was evaluated using electrochemical impedance spectroscopy (EIS) during extended immersion times up to 48 h. The results of electrochemical impedance spectroscopy showed that Ni/Zn CMM coatings had better corrosion resistance compared to that of the zinc single layer coating. The modified corrosion product which is formed on the Ni/Zn CMM coatings during extended exposure times and also a good barrier effect of the nickel layer against aggressive species in these coatings can be two important reasons for high corrosion performance and so protection performance of the Ni/Zn CMM coatings. |
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Keywords: | A Nickel A Zinc A Metal coatings B EIS |
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