Coatings can protect metallic substrates (e.g., piping, vessels, tubes, etc.) against corrosion attack. The adhesion strength of a coating to its substrate is an essential factor that defines the overall coating integrity and performance. A pull-off adhesion test is commonly performed to determine the coating adhesion strength. This study evaluated the effect of various vital influencing factors on the pull-off adhesion test, including surface preparation of the loading fixture (dolly) and coating surface, types, curing durations and conditions of glue, and scoring of coating around the dolly. Test results were systematically analysed with non-subjective tools such as Image-J software for failure mode assessment and statistical analysis (t-Test) to compare adhesion values.
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Research Article|
February 05 2023
A systematic study on the effects of key influencing factors on pull-off adhesion test of organic coatings
Sri Kambhampati;
Sri Kambhampati
S Kambhampati WASM-MECE,
Curtin University
, Perth, Australia
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Qing Cao;
Qing Cao
Q Cao WASM-MECE,
Curtin University
, Bentley, Australia
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Varun Ghodkay;
Varun Ghodkay
V Ghodkay WASM-MECE,
Curtin University
, Bentley, Australia
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Hanan Farhat;
Hanan Farhat
H Farhat
Qatar Environment and Energy Research Institute
, Doha, Qatar
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Thunyaluk Pojtanabuntoeng
T Pojtanabuntoeng WASM-MECE,
Curtin University
, Bentley, Australia
Correspondence: Thunyaluk Pojtanabuntoeng, Email: thunyaluk.pojtanabuntoeng@curtin.edu.au
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CORROSION 4234:.
Article history
Received:
November 01 2022
Revision Received:
November 24 2022
Accepted:
February 05 2023
Citation
Sri Kambhampati, Qing Cao, Varun Ghodkay, Hanan Farhat, Thunyaluk Pojtanabuntoeng; A systematic study on the effects of key influencing factors on pull-off adhesion test of organic coatings. CORROSION 2023; 4234:. doi: https://doi.org/10.5006/4234
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