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Type: Artigo de periódico
Title: Electrochemical corrosion characterization of Al-Ni alloys in a dilute sodium chloride solution
Author: Osorio, WR
Peixoto, LC
Cante, MV
Garcia, A
Abstract: The aim of this study is to characterize the electrochemical corrosion resistance of Al-Ni alloy samples which were directionally solidified under upward unsteady state heat flow conditions. Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques were used to analyze the corrosion resistance in a dilute 0.05 M NaCl solution at 25 degrees C. Equivalent circuit analyses were also conducted. It was found that microstructural features such as the dendritic arrangement and the distribution of Al(3)Ni intermetallic particles have important roles on both the resulting pitting potential and the general corrosion resistance of Al-Ni alloys. (C) 2010 Elsevier Ltd. All rights reserved.
Subject: Al-Ni alloys
Intermetallic Al(3)Ni particles
Electrochemical impedance spectroscopy
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Citation: Electrochimica Acta. Pergamon-elsevier Science Ltd, v. 55, n. 13, n. 4078, n. 4085, 2010.
Rights: fechado
Identifier DOI: 10.1016/j.electacta.2010.02.029
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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