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Corrosion performance of aluminium in atmospheric, underground and seawater splatter zone in the northeastern coast of Arabian Peninsula

Corrosion performance of aluminium in atmospheric, underground and seawater splatter zone in the... PurposeThe purpose of this study was to determine the atmospheric corrosion behavior of aluminium (Al) exposed to the industrial and coastal environments of northeastern Arabian Peninsula for a period of 15 months.Design/methodology/approachThe samples were exposed under atmospheric, underground and splatter zone conditions at the coastal region. Soil, groundwater, seawater and air particulate samples obtained from the exposure site were analyzed. Secondary electron microscopy was used to identify and study the microstructural features of the corrosion products formed at the surface of the test coupons. The corrosion rates of the samples were determined by the weight loss method.FindingsThe results showed that Al exhibited a moderate corrosion rate despite high degree of variation in temperature and humidity and large concentrations of chloride and sulfate in this region. Splatter zone environment was the most corrosive because of high chloride concentrations in seawater and the alternating wetting–drying cycles.Originality/valueIn this paper, corrosion of Al was evaluated in atmospheric, soil and splatter zone conditions along the northeastern coast of Arabian Peninsula and was also compared with the results of the test reported for other international locations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Anti-Corrosion Methods and Materials Emerald Publishing

Corrosion performance of aluminium in atmospheric, underground and seawater splatter zone in the northeastern coast of Arabian Peninsula

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0003-5599
DOI
10.1108/ACMM-05-2016-1677
Publisher site
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Abstract

PurposeThe purpose of this study was to determine the atmospheric corrosion behavior of aluminium (Al) exposed to the industrial and coastal environments of northeastern Arabian Peninsula for a period of 15 months.Design/methodology/approachThe samples were exposed under atmospheric, underground and splatter zone conditions at the coastal region. Soil, groundwater, seawater and air particulate samples obtained from the exposure site were analyzed. Secondary electron microscopy was used to identify and study the microstructural features of the corrosion products formed at the surface of the test coupons. The corrosion rates of the samples were determined by the weight loss method.FindingsThe results showed that Al exhibited a moderate corrosion rate despite high degree of variation in temperature and humidity and large concentrations of chloride and sulfate in this region. Splatter zone environment was the most corrosive because of high chloride concentrations in seawater and the alternating wetting–drying cycles.Originality/valueIn this paper, corrosion of Al was evaluated in atmospheric, soil and splatter zone conditions along the northeastern coast of Arabian Peninsula and was also compared with the results of the test reported for other international locations.

Journal

Anti-Corrosion Methods and Materials – Emerald Publishing

Published: May 2, 2017

References

  • Initial stages of atmospheric corrosion of steel in the Arabian Gulf
  • Recommended practice for preparing, cleaning and evaluating corrosion test specimens
    ASTM G 1
  • Standard guide for examination and evaluation of pitting corrosion
    ASTM G 46
  • Standard recommended practice for atmospheric corrosion tests on metals and alloys
    ASTM G 50