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Atmospheric corrosion tests in Brazilian Legal Amazon – field and laboratory tests

✍ Scribed by L.R.M. Miranda; L. Sathler; R. Nogueira; S.L.D.C. Brasil


Publisher
John Wiley and Sons
Year
2000
Tongue
German
Weight
149 KB
Volume
51
Category
Article
ISSN
0947-5117

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✦ Synopsis


This paper presents the first results concerning tests carried out to evaluate the atmospheric corrosion in Brazilian Legal Amazon, as part of the SIVAM ± Amazon Surveillance System. The aim of the present work is to determine and select materials as well as anti-rust paints, which will be employed to protect metallic structures of radar towers, equipment and buildings. Five anti-rust paints on mild and galvanised steels were tested. Field tests are supported by accelerated laboratory results in wet and drying cycles in electrolytes simulating different microclimates. These solutions were prepared in laboratory based on pH, conductivity and chloride content values of locally collected rainwater.

Die Arbeit stellt die ersten Ergebnisse von Versuchen zur Beurteilung der atmospha Èrischen Korrosion im brasilianischen Amazonasgebiet, als Teil des Amazonasu Èberwachungssystems SIVAM, vor. Das Ziel der vorliegenden Arbeit ist es, Werkstoffe und Beschichtungen auszuwa Èhlen, die eingesetzt werden ko Ènnen, um metallische Bauteile von Radartu Èrmen, Anlagen und Geba Èuden zu schu Ètzen. Es wurden fu Ènf Antirostbeschichtungen auf unlegiertem und verzinktem Stahl untersucht. Die Feldversuche wurden durch beschleunigte Laborversuche mit Nass-und Trockenzyklen in Elektrolyten, die die verschiedenen Mikroklimate simulieren, unterstu Ètzt.

Die entsprechenden Lo Èsungen wurden im Labor auf der Basis von pH-Werten, Leitfa Èhigkeiten und Chloridgehalten von o Èrtlich gesammeltem Regenwasser hergestellt.


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