Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/243718
Type: Artigo de periódico
Title: Electrochemical Behavior Of An Al-fe-ni Alloy Affected By Nano-sized Intermetallic Particles
Author: Osorio
Wislei R.; Cante
Manuel V.; Brito
Crystopher; Freitas
Emmanuelle S.; Garcia
Amauri
Abstract: The aim of this study is to determine the effect of the resulting microstructural array of an as-cast Al-1 wt% Fe-1 wt% Ni alloy on its electrochemical corrosion behavior in a stagnant and naturally aerated 0.5 M NaCl solution at room temperature. Electrochemical impedance spectroscopy (EIS) plots, potentiodynamic polarization curves, and equivalent circuits are used to evaluate the corrosion response. It was found that nanosized Al9FeNi intermetallic (IMC) particles have an important role on the corrosion resistance, which significantly affect the anode/cathode area ratio and as consequence, the examined electrochemical parameters. A mixture of interconnected spheroids and fiber-like IMC particles induces a drastic and rapid increase in the current density, while intermittent IMC particles reduce the corrosion action.
Subject: Impedance Spectroscopy
Corrosion Behavior
Nacl Solution
Aluminum
Chloride
Parameters
Titanium
Country: HOUSTON
Editor: NATL ASSOC CORROSION ENG
Citation: Electrochemical Behavior Of An Al-fe-ni Alloy Affected By Nano-sized Intermetallic Particles. Natl Assoc Corrosion Eng, v. 71, p. 510-522 APR-2015.
Rights: fechado
Identifier DOI: 10.5006/1356
Address: http://www.corrosionjournal.org/doi/abs/10.5006/1356
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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