Torres-Ramirez, Jhon E. , Sandoval-Amador, Anderson , Ortiz-Vasquez, Luisa Fernanda , Pena-Ballesteros, Dario Yesid , ENDRINO ARMENTEROS, JOSÉ LUIS
No
Emerg. Mater.
Article
Científica
16/01/2024
001152219100002
2-s2.0-85182498738
Galvanized steel is one of the main materials used today due to its mechanical properties and corrosion resistance; among multiple applications, it is used in the construction of metal and concrete structures. Galvanized steel is a material made of carbon steel SAE/AISI 1010 covered with a zinc surface that supplies steel with significant protection against corrosion. Although the physicochemical and electrochemical behavior of galvanized steel has been studied in multiple environments of service under different conditions; very few studies have focused on analyzing the performance of this material below room temperature (25 degrees C). Clearly, galvanized steel is exposed to low seawater temperatures in environments where the climate temperature is between 25 and 0 degrees C. This research work evaluates the electrochemical behavior of galvanized steel samples with three different coatings thicknesses (0.0043 g center dot cm-2, 0.0080 g center dot cm-2, and 0.0135 g center dot cm-2) using simulated seawater solution in a temperature range between 0 and 25 degrees C. The results obtained allow understand better the effect of temperature on the corrosion of galvanized steel exposed in environments at temperatures below 25 degrees C. The data obtained show that there is an inverse correlation between the thickness of the Zn coating and the corrosion rate; on the other hand, by decreasing the working temperature from 25 to 0 degrees C, a slight increase in the kinetics of the corrosion process was obtained, this being a result of great relevance in the industry and scientific research.
Galvanized steel; Corrosion; Electrochemical test; Zinc film