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Outdoor-indoor corrosion of metals in tropical coastal atmospheres |
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| Authors: | F. Corvo,L.R. Dzib,A. Castañ eda |
| Affiliation: | a Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de la Habana, Vedado, Plaza, Ciudad de la Habana, Cuba b Centro de Investigación en Corrosión (CICORR), Universidad Autónoma de Campeche, Ave. Agustin Melgar s/n, Colonia Buenavista, San Francisco de Campeche, Cam, C.P. 24030, Mexico c Centro Nacional de Investigaciones Científicas (CNIC), Apartado 6412, Ciudad de la Habana, Cuba |
| Abstract: | Results of indoor and outdoor atmospheric corrosion tests conducted during a long period of time at Cuba and Campeche (Mexico) indicated very high corrosion rates at both sites which have humid-tropical marine climate. We found that the outdoor corrosivity ranges from C3 to >C5 according to ISO 9223 nevertheless metals exposed to sheltered conditions presented higher corrosion rates compared to outdoors, whereas in closed (indoor) environments the corrosion rate significantly decreased. It is recommended to define an additional level of corrosivity for tropical coastal atmospheres in outdoor and sheltered conditions as corrosion depends on the geographical position and exposure conditions. |
| Keywords: | A. Aluminium A. Copper A. Steel A. Tin C. Atmospheric corrosion |
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