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Atmospheric corrosion of ordinary mild steel in the Arabian Gulf environment
Author(s) -
Taqi Emad,
Al Madani H.,
Shaji E.
Publication year - 1993
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19930440704
Subject(s) - spallation , corrosion , metallurgy , cracking , porosity , oxide , materials science , environmental chemistry , environmental science , composite material , chemistry , physics , quantum mechanics , neutron
Atmospheric corrosion tests were carried out on mild steel to study its corrosion behaviour in the Arabian Gulf environment. Results of exposure tests indicate that the atmospheric attack proceeds in a paralinear fashion during the first year of exposure. S.E.M. examination of the oxide scale showed extensive porosity, spallation and cracking with the appearance of platelike structures close to pitted sites. X‐ray diffraction analysis revealed the presence of γFeOOH, αFeOOH, αFe 2 O 3 and Fe 3 O 4 . EDX analysis disclosed that specimen surface contaminants are primarily constituents of sea spray.