Efecto de las morfologías estructurales longitudinales y transversales en la resistencia a corrosión de las muestras del cinc y aluminio

W. R. Osório; C. A. Siqueira; C. M. A. Freire; A. García

doi:10.3989/revmetalm.2005.v41.iExtra.1020

Effects of the longitudinal and transversal structural grain morphologies upon the corrosion resistance of zinc and aluminium specimens

Authors

W. R. Osório Department of Materials Engineering, State University of Campinas, UNICAMP
C. A. Siqueira Department of Materials Engineering, State University of Campinas, UNICAMP
C. M. A. Freire Department of Materials Engineering, State University of Campinas, UNICAMP
A. García Department of Materials Engineering, State University of Campinas, UNICAMP

DOI:

https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1020

Keywords:

Morfología estructural, Solidificación, Tamaño de granos, Corrosión, Cinc y aluminio

Abstract

Several different structural morphologies may develop due to a wide range of the operational conditions that may exist during solidification. It was reported that the structural morphology affects the corrosion resistance. The aim of this study is to investigate the influence of the longitudinal (columnar) and transversal (equiaxed) structures of the same sample upon the corrosion resistance of pure aluminium and zinc castings. In order to obtain both longitudinal and transversal structures a vertical upward solidification apparatus was used. The corrosion resistance was analyzed by the EIS and Tafel extrapolation methods in a 3 % NaCl solution. The investigation has shown that both structures present similar corrosion behavior.

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Published

2005-12-17

How to Cite

Osório, W. R., Siqueira, C. A., Freire, C. M. A., & García, A. (2005). Effects of the longitudinal and transversal structural grain morphologies upon the corrosion resistance of zinc and aluminium specimens. Revista De Metalurgia, 41(Extra), 176–180. https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1020

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Issue

Vol. 41 No. Extra (2005)

Section

Articles

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