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Atmospheric corrosivity in Bogota as a very high-altitude metropolis questions international standards

Ríos Rojas, John Fredy and Escobar Ocampo, Diego and Hernández García, Edwin Arbey and Arroyave Posada, Carlos Enrique (2015) Atmospheric corrosivity in Bogota as a very high-altitude metropolis questions international standards. DYNA, 82 (190). pp. 128-137. ISSN 2346-2183

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This paper presents the first systematic atmospheric corrosion assessment in Bogota. Main facts about the study are related with special characteristics of the City, such as population (more than eight million inhabitants), and altitude (2600 m over the sea level). Relative humidity, temperature, and SO2 concentration were measured. Simultaneously, corrosion rate of AIS/SAE 1006 plain steel was measured along one year. Results show that atmospheric corrosion is between C2 – C3 levels, according to the ISO 9223 standard. Nevertheless, estimations from meteorological parameters produce lower corrosivities and, taking into account SO2 concentrations, corrosivities in places with higher relative humidity, are higher than corrosivities measured on steel coupons. In general, the main pollution problem is particulate matter, but higher corrosion rates were directly associated with SO2 levels. Gaps between found results and international estimation methodologies are evident. Some explanations about that, are proposed.

Tipo de documento:Artículo - Article
Palabras clave:Brook’s Index, ISO 9223 Standard, relative humidity (RH), time of wetness (TOW), plain carbon steel, atmospheric pollutants.
Temática:6 Tecnología (ciencias aplicadas) / Technology > 62 Ingeniería y operaciones afines / Engineering
Unidad administrativa:Revistas electrónicas UN > Dyna
Código ID:59087
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :31 Oct 2017 17:20
Ultima modificación:27 Noviembre 2017 22:07
Ultima modificación:27 Noviembre 2017 22:07
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