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Electrochemical properties of AA5083 and AA6060 alloys in seawater

AA5083 and AA6060 are alloys commonly used in marine application. Therefore, investigation of their electrochemical parameters in seawater with the aim to determine corrosion properties is of quite some interest. In this paper, following electrochemical tests were carried out at (18 ± 0, 5)°C and at (30 ± 0, 5)°C: linear polarization, electrochemical impedance spectroscopy (EIS) as well as potentiodynamic polarization. In order to obtain conditions more close to real one, fresh seawater was sampled as an electrolyte in Šibenik region. Obtained result give more insight in AA5083 and AA6060 alloys behaviour in natural seawater as well as on the effect of temperature change on electrochemical parameters.

seawater, aluminium alloys, electrochemical measurements, corrosion

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