3-D tomography by automated in situ block face ultramicrotome imaging using an FEG-SEM to study complex corrosion protective paint coatings

•A new technique was demonstrated to image paint microstructures in 3-D.•The cracking of paint coatings was studied in 3-D.•The morphology and distribution of paint additives was investigated in 3-D.•3-D images were used to the measure and follow corrosion inhibitor depletion. Aircraft coatings are...

Full description

Saved in:
Bibliographic Details
Published in:Corrosion science 2013-10, Vol.75, p.376-385
Main Authors: Trueman, Antony, Knight, Steven, Colwell, John, Hashimoto, Teruo, Carr, James, Skeldon, Peter, Thompson, George
Format: Article
Language:English
Subjects:
A. Organic coatings
Applied sciences
B. Modelling studies
B. SEM
C. Paint coatings
Coatings
Corrosion
Corrosion environments
Corrosion inhibitors
Corrosion prevention
Exact sciences and technology
Imaging
In situ leaching
Inhibition
Metals. Metallurgy
Nonmetallic coatings
Paints
Production techniques
Surface treatment
Three dimensional
Tomography
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•A new technique was demonstrated to image paint microstructures in 3-D.•The cracking of paint coatings was studied in 3-D.•The morphology and distribution of paint additives was investigated in 3-D.•3-D images were used to the measure and follow corrosion inhibitor depletion. Aircraft coatings are generally multi-layered with both barrier properties and are corrosion inhibitor filled to prevent corrosion. A new technique, automated in situ block face ultramicrotome imaging using an FEG-SEM has been employed for high resolution 3-D imaging of such aircraft coatings. A pristine and a cracked aged coating were visualised by this method clearly showing the coatings microstructure and subsequent crack growth properties. Filler particles were segmented and labelled allowing the coating to be more clearly visualised and enabling statistical particle analysis and meshing. Finally the method was used to investigate the inhibitor leaching properties of four aircraft primers.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2013.06.021