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98685 THE CORROSION PERFORMANCE OF NICKEL-BASED ALLOYS IN A REVERSE OSMOSIS PLANT UTILIZING SEAWATER

Product Number: 51300-98685-SG
ISBN: 98685 1998 CP
Author: A. Al-Hashem, J. Carew, A. Al-Odwani
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Four nickel-based alloys, UNS N06625 UNS N08825 UNS N10276 and UNS N05500, were evaluated in terms of their corrosion performance in a seawater reverse osmosis plant using the electrochemical impedance spectroscopy (EIS), open circuit potential (OCP) and linear polarization resistance (LPR) measurements. Slight changes in the EIS spectra were observed for UNS N06625, UNSN10276 and UNS N0550 at low frequencies. However, UNS N08825 EIS spectra exhibited more changes than the other alloys at low frequencies. The OCP of UNS N10276 was more noble than the other alloys under the same conditions. The LPR measurements indicated that UNS N10276 and UNS N05500 exhibited lower corrosion rates than UNS NO6625 and UNS N0885.. Keywords: corrosion, seawater, electrochemical impedance, open circuit potential, linear polarization.
Four nickel-based alloys, UNS N06625 UNS N08825 UNS N10276 and UNS N05500, were evaluated in terms of their corrosion performance in a seawater reverse osmosis plant using the electrochemical impedance spectroscopy (EIS), open circuit potential (OCP) and linear polarization resistance (LPR) measurements. Slight changes in the EIS spectra were observed for UNS N06625, UNSN10276 and UNS N0550 at low frequencies. However, UNS N08825 EIS spectra exhibited more changes than the other alloys at low frequencies. The OCP of UNS N10276 was more noble than the other alloys under the same conditions. The LPR measurements indicated that UNS N10276 and UNS N05500 exhibited lower corrosion rates than UNS NO6625 and UNS N0885.. Keywords: corrosion, seawater, electrochemical impedance, open circuit potential, linear polarization.
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