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Environmental factors responsible for the unusual corrosion of galvanized steel
Author(s) -
Morcillo M.,
Ruiz J. L.,
Matilla M. Gonzalez
Publication year - 1989
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.19890401107
Subject(s) - galvanization , corrosion , metallurgy , materials science , subtropics , atmosphere (unit) , composite material , layer (electronics) , physics , fishery , biology , thermodynamics
A phenomenon of unusual heavy corrosion of hot dip galvanized structural steelwork in a subtropical severe marine atmosphere has been studied. Through the data optained from X‐ray diffraction analysis of corrosion products, surrounding soil samples and environmental dust samples, and from SEM observations and EDAX analysis of loose corrosion scale, as well as from the information provided by the metallographic study of galvanized steel sections with different degree of corrosion, a mechanism of attack has been proposed, which accounts for the special environmental factors prevailing on the place.