4. Conclusion
The difficulty, from an experimental point of view, of reproducing real and therefore fluctuating atmospheric conditions explains the absence of a quantitative model for estimating the service life of a metal structure subjected to atmospheric corrosion, and the need to rely on empirical relationships or accelerated testing. Nevertheless, when designing a structure or installation exposed to air, certain parameters need to be taken into consideration:
Atmospheric corrosion is an electrochemical process taking place in a thin film of electrolyte;
the composition of the electrolyte, which depends on the presence of pollutants, gases or particles likely to dissolve in it, is a determining factor in corrosion speed;
the constituents of the air determine the nature of the corrosion...
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Standards and norms
Standards: TC 156 – Corrosion of metals and alloys
- Corrosion of metals and alloys – Determination of bimetallic corrosion for atmospheric corrosion exposure tests - ISO 7441 - 2015
- Metals and alloys – Atmospheric corrosion tests – General requirements - ISO 8565 - 2011
- Corrosion of metals and alloys – Atmospheric corrosivity – Classification, determination and estimation - ISO 9223 - 2012 ...
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