Premium
Surface studies of conversion coated steel after corrosion induced paint deadhesion
Author(s) -
deVries J. E.,
Riley T. L.,
Holubka J. W.,
Dickie R. A.
Publication year - 1985
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740070302
Subject(s) - corrosion , delamination (geology) , scanning electron microscope , materials science , dissolution , metallurgy , zinc , coating , layer (electronics) , zinc phosphate , crystal (programming language) , secondary ion mass spectrometry , chemical engineering , composite material , ion , chemistry , paleontology , organic chemistry , biology , computer science , tectonics , programming language , engineering , subduction
Secondary ion mass spectorscopy (SIMS) and scanning electron microscopy (SEM) have been used to characterize the surface composition and morphology of zinc‐phosphated steel before application of organic coatings and after corrosion‐induced delamination of these coatings. Imaging SIMS and SEM results confirm the presence of a cystalline zinc‐iron‐phosphate layer on the phosphated steel before coating application. During the corrosion process, dissolution of the crystal structure occurs between the initial corrosion site and the progressing edge of corrosion induced delamination. Beyond this edge the crystal structure remains intact.