Artículos de revistas
Electrochemical corrosion parameters of as-cast Al-Fe alloys in a NaCl solution
Registro en:
Corrosion Science. Pergamon-elsevier Science Ltd, v. 52, n. 9, n. 2979, n. 2993, 2010.
0010-938X
WOS:000280272200028
10.1016/j.corsci.2010.05.011
Autor
Osorio, WR
Peixoto, LC
Goulart, PR
Garcia, A
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) The aim of this study is to evaluate the general electrochemical corrosion resistance of Al-Fe alloys in the range of hypoeutectic compositions, Al-0.5 wt.% Fe and Al-1.5 wt.% Fe alloy. EIS plots, potentiodynamic polarization curves and an equivalent circuit analysis were used to evaluate the electrochemical parameters in a 0.5 M NaCl solution at 25 degrees C. It is shown that for an Al-0.5 wt.% Fe alloy, coarse cells tend to improve the corrosion resistance mainly due to the reduction in cellular boundaries and for an Al-1.5 wt.% Fe alloy, an opposite trend has been detected. (C) 2010 Elsevier Ltd. All rights reserved. 52 9 2979 2993 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) FAEPEX-UNICAMP Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)