Mapa de corrosión atmosférica de Chile: Resultados después de 1 año de exposición

R. Vera, M. Puentes, R. Araya, P. Rojas, A. Carvajal

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

20 Citas (Scopus)

Resumen

Metallic corrosion is a problem that is intensified by exposure to certain atmospheres, decreasing the life of the metal or alloy, creating operational inefficiencies in industrial plants, resulting in high repair costs, arrests and/or replacements. In Chile there are marked geographic, demographic and industry, making it necessary to produce maps of environmental aggressiveness and corrosiveness, whose information will enable the proper selection of materials to be used in different environments. In this paper presents results obtained after one year of developing a national map of corrosion and environmental aggressiveness, in terms of corrosion rate, wetting time and contaminants in 31 study sites in Chile. To achieve the goal, 124 racks throughout the country were installed with samples of carbon steel, copper, galvanized steel and aluminum prepared according to ISO 9223 to 9226. In the testing stations meteorological variables of temperature, humidity, rainfall, speed and wind direction and solar radiation, chloride content as pollutants and sulfur dioxide environment were measured. The corrosion rate of each material was measured by mass loss measurements. The results show a year of exposure variations that will make models of behavior that allow selecting the most suitable material.

Título traducido de la contribuciónMapa de corrosión atmosférica de Chile: Resultados después de 1 año de exposición
Idioma originalEspañol
Páginas (desde-hasta)61-72
Número de páginas12
PublicaciónRevista de la Construccion
Volumen11
N.º2
EstadoPublicada - ago. 2012

Palabras clave

  • Aluminium
  • Atmospheric corrosion
  • Carbon steel
  • Copper
  • Corrosivity Chilean map
  • Galvanized steel

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