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Corrosion caused by the atmosphere on 1050 aluminum in the Basque country

✍ Scribed by A. S. Elola; Prof. T. F. Otero; Dr. A. Porro

Publisher
John Wiley and Sons
Year
1993
Tongue
German
Weight
1007 KB
Volume
44
Category
Article
ISSN
0947-5117

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✦ Synopsis

Abstract

After exposing aluminium samples to five atmospheres (rural. industrial and marine‐industrial) in the Basque Country, the number and depth of the pits formed for different exposure times were measured. During the four years of exposure, sulphur dioxide and chloride ion levels, together with relative humidity and temperature, were determined.

From these results, a linear increase of the pit density with time and a bilogarithmic one of the pit depth with time, were determined. An important effect of the synergistic action of SO~2~ and chloride in the formation and growth of pits was found.

A statistical treatment is proposed to predict the pit density to be formed when the 1050 aluminum is exposed to the atmosphere.

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This note concerns an incident involving a publication in EFM by J. Rajasankar and N. R