Electrochemical noise evaluation of anodized aluminum. Comparative study against corrosion behaviour in the atmosphere

N. Betancourt; F. Corvo; A. Mendoza; J. Simancas; Manuel Morcillo; J. A. González; F. Fragata; J. J. Peña; M. Sánchez de Villalaz; Santiago Flores; E. Almeida; S. Rivero; O. T. De Rincón

Electrochemical noise evaluation of anodized aluminum. Comparative study against corrosion behaviour in the atmosphere

N. Betancourt
, F. Corvo
, A. Mendoza
, J. Simancas
, Manuel Morcillo
, J. A. González
, F. Fragata
, J. J. Peña
, M. Sánchez de Villalaz
, Santiago Flores
, E. Almeida
, S. Rivero
, O. T. De Rincón

Sección de Ingeniería Industrial

Centro Nacional de Investigaciones Cientificas
CSIC - Centro Nacional de Investigaciones Metalurgicas (CENIM)
Centro de Pesquisas de Energia Elétrica
Escuela Superior Politecnica del Litoral Ecuador
Universidad Tecnologica de Panama
Instituto Nacional de Engenharia Tecnologia E Inovacao
Universidad de la República
Universidad Del Zulia

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The present work reports the evaluation of aluminum and anodized aluminum by electrochemical noise, as a part of the PATINA/CYTED project of the working group N ° 5. A visual examination is also made. The samples were exposed at several Ibero-American atmospheres up to 2 years of exposure. Different thickness of anodized aluminum were evaluated. The electrochemical potential noise of the 5 μm unexposed sample (pattern) showed a different behaviour to that showed by the other anodized specimens. This could be due to a slower sealed of the samples of higher thickness. The same behaviour was observed on the samples exposed at the rural station El Pardo. According to the visual examination, the samples of bare aluminum and those of anodized 5 μm thickness were the most affected by pitting corrosion in the highly polluted atmospheres. A good correlation between corrosion behaviour determined by visual examination and EN was obtained.

Original language	Spanish
Pages (from-to)	38-42
Number of pages	5
Journal	Revista de Metalurgia (Madrid)
State	Published - 1 Jan 2003

Cite this

@article{76223afb2f2146388b094534e08b4137,

title = "Electrochemical noise evaluation of anodized aluminum. Comparative study against corrosion behaviour in the atmosphere",

abstract = "The present work reports the evaluation of aluminum and anodized aluminum by electrochemical noise, as a part of the PATINA/CYTED project of the working group N ° 5. A visual examination is also made. The samples were exposed at several Ibero-American atmospheres up to 2 years of exposure. Different thickness of anodized aluminum were evaluated. The electrochemical potential noise of the 5 μm unexposed sample (pattern) showed a different behaviour to that showed by the other anodized specimens. This could be due to a slower sealed of the samples of higher thickness. The same behaviour was observed on the samples exposed at the rural station El Pardo. According to the visual examination, the samples of bare aluminum and those of anodized 5 μm thickness were the most affected by pitting corrosion in the highly polluted atmospheres. A good correlation between corrosion behaviour determined by visual examination and EN was obtained.",

author = "N. Betancourt and F. Corvo and A. Mendoza and J. Simancas and Manuel Morcillo and Gonz{\'a}lez, \{J. A.\} and F. Fragata and Pe{\~n}a, \{J. J.\} and \{S{\'a}nchez de Villalaz\}, M. and Santiago Flores and E. Almeida and S. Rivero and \{De Rinc{\'o}n\}, \{O. T.\}",

year = "2003",

month = jan,

day = "1",

language = "Espa{\~n}ol",

pages = "38--42",

journal = "Revista de Metalurgia (Madrid)",

issn = "0034-8570",

}

TY - JOUR

T1 - Electrochemical noise evaluation of anodized aluminum. Comparative study against corrosion behaviour in the atmosphere

AU - Betancourt, N.

AU - Corvo, F.

AU - Mendoza, A.

AU - Simancas, J.

AU - Morcillo, Manuel

AU - González, J. A.

AU - Fragata, F.

AU - Peña, J. J.

AU - Sánchez de Villalaz, M.

AU - Flores, Santiago

AU - Almeida, E.

AU - Rivero, S.

AU - De Rincón, O. T.

PY - 2003/1/1

Y1 - 2003/1/1

N2 - The present work reports the evaluation of aluminum and anodized aluminum by electrochemical noise, as a part of the PATINA/CYTED project of the working group N ° 5. A visual examination is also made. The samples were exposed at several Ibero-American atmospheres up to 2 years of exposure. Different thickness of anodized aluminum were evaluated. The electrochemical potential noise of the 5 μm unexposed sample (pattern) showed a different behaviour to that showed by the other anodized specimens. This could be due to a slower sealed of the samples of higher thickness. The same behaviour was observed on the samples exposed at the rural station El Pardo. According to the visual examination, the samples of bare aluminum and those of anodized 5 μm thickness were the most affected by pitting corrosion in the highly polluted atmospheres. A good correlation between corrosion behaviour determined by visual examination and EN was obtained.

AB - The present work reports the evaluation of aluminum and anodized aluminum by electrochemical noise, as a part of the PATINA/CYTED project of the working group N ° 5. A visual examination is also made. The samples were exposed at several Ibero-American atmospheres up to 2 years of exposure. Different thickness of anodized aluminum were evaluated. The electrochemical potential noise of the 5 μm unexposed sample (pattern) showed a different behaviour to that showed by the other anodized specimens. This could be due to a slower sealed of the samples of higher thickness. The same behaviour was observed on the samples exposed at the rural station El Pardo. According to the visual examination, the samples of bare aluminum and those of anodized 5 μm thickness were the most affected by pitting corrosion in the highly polluted atmospheres. A good correlation between corrosion behaviour determined by visual examination and EN was obtained.

M3 - Artículo

SN - 0034-8570

SP - 38

EP - 42

JO - Revista de Metalurgia (Madrid)

JF - Revista de Metalurgia (Madrid)

ER -