Mecanismos de corrosión e inhibición electroquímica del acero galvanorrecocido

M. A. Arenas; J. J. de Damborenea

doi:10.3989/revmetalm.2006.v42.i3.16

Electrochemical corrosion and inhibition mechanisms of galvannealed steel

Authors

M. A. Arenas Departamento de Corrosión y Protección Centro Nacional de Investigaciones Metalúrgicas, CENIM-CSIC
J. J. de Damborenea Departamento de Corrosión y Protección Centro Nacional de Investigaciones Metalúrgicas, CENIM-CSIC

DOI:

https://doi.org/10.3989/revmetalm.2006.v42.i3.16

Keywords:

Corrosion, Galvannealed, Cerium, Inhibitor, EIS

Abstract

The corrosion mechanism of galvannealed in 0,6 M NaCl has been evaluated by means of electrochemical impedance spectroscopy (EIS). After 48 hours and for longer immersion time, up to 1 month, in sodium chloride, the system is controlled by a diffusion process at finite layer. Moreover, the effectiveness of cerium salts as inhibitor added in the electrolyte has been studied. Inhibition percentages of about 85% for 500 and 1000 ppm at 24 hours have been found. On the hand, changes in the corrosion mechanism due to the cerium presence were shown.

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References

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Published

2006-06-30

How to Cite

Arenas, M. A., & de Damborenea, J. J. (2006). Electrochemical corrosion and inhibition mechanisms of galvannealed steel. Revista De Metalurgia, 42(3), 165–174. https://doi.org/10.3989/revmetalm.2006.v42.i3.16

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Issue

Vol. 42 No. 3 (2006)

Section

Articles

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