Cambios en la velocidad de aceleración provocada por los iones cloruros en dependencia de las condiciones climáticas. Influencia de la lluvia

F. Corvo; C. Arroyave; M. Autié; J. Minotas; J. Balmaseda; J. Delgado; C. Haces

doi:10.3989/revmetalm.2003.v39.iExtra.1095

Changes in acceleration rate of chloride ions depending on climatic conditions. Influence of rain

Authors

F. Corvo Chemistry Division. National Centre for Scientific Research (CNIC)
C. Arroyave Corrosion Group. Faculty of Engineering. Antioquia University
M. Autié Chemistry Division. National Centre for Scientific Research (CNIC)
J. Minotas Corrosion Group. Faculty of Engineering. Antioquia University
J. Balmaseda Chemistry Division. National Centre for Scientific Research (CNIC)
J. Delgado Corrosion Group. Faculty of Engineering. Antioquia University
C. Haces Chemistry Division. National Centre for Scientific Research (CNIC)

DOI:

https://doi.org/10.3989/revmetalm.2003.v39.iExtra.1095

Keywords:

Chloride ions, Mild steel, Copper, Aluminium, Water adsoption

Abstract

Mild steel, copper and aluminium samples were exposed outdoors in two atmospheric test stations located in Havana, Cuba and Medellín, Colombia. Two parallel group of samples were formed, one for each station. They were submitted to accelerated outdoor test by intermittent spraying of a salt solution (SCAB test) according to ISO 11474:98, receiving also the influence of the open atmosphere. The acceleration of corrosion rate of the three metals caused by the presence of chloride ions in both stations was determined. As expected, steel shows the higher corrosion rate and acceleration by chlorides, particularly at Cuban corrosion station. A remarkable difference in the acceleration rate of chloride ions for mild steel and copper between Cuban and Colombian acceleration rate of chloride ions of steel and copper. Steel corrosion products were analyzed by Mössbauer Spectroscopy. Water absorption was also studied. The presence of magnetite, goethite and other Iron compounds was determined.

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Published

2003-12-17

How to Cite

Corvo, F., Arroyave, C., Autié, M., Minotas, J., Balmaseda, J., Delgado, J., & Haces, C. (2003). Changes in acceleration rate of chloride ions depending on climatic conditions. Influence of rain. Revista De Metalurgia, 39(Extra), 43–48. https://doi.org/10.3989/revmetalm.2003.v39.iExtra.1095

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Issue

Vol. 39 No. Extra (2003)

Section

Articles

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