TY - JOUR
T1 - Evaluation of anticorrosive coatings on carbon steel in marine environments
T2 - Accelerated corrosion test and field exposure
AU - Vera, Rosa
AU - Cruz, Estefanía
AU - Bagnara, Margarita
AU - Araya, Raquel
AU - Henríquez, Rodrigo
AU - Díaz-Gómez, Andrés
AU - Rojas, Paula
N1 - Funding Information:
ACKNOWLEDGEMENTS To INNOVA-CORFO Chile Project 13BPC3-19083 and to the Pontificia Universidad Católica de Valparaíso-Chile for financial support in conducting this research.
Publisher Copyright:
© 2018 The Authors.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - This study assesses the behavior of two paint systems applied to A-36 steel, commonly used to cover industrial structures in marine environments. Accelerated tests were carried out in a salt spray chamber with a maximum of 3000 hours of exposure, while other tests were conducted in the field in five areas in Chile over a period of two years. Coatings were assessed with measurements of thickness, adherence, and blistering. The behaviors of these coatings were assessed using electrochemical impedance spectroscopy (EIS techniques, measuring the evolution of an impedance module at 0.1 Hz. The results show that, after two years of exposure or after 3000 hours in the salt spray chamber, the two coatings still present adequate protective properties, with an impedance module value log |Z| greater than 106 Ω cm2. However, for all tests, comparing C5MB and C5IB coating systems, the latter is always less protective for the steel.
AB - This study assesses the behavior of two paint systems applied to A-36 steel, commonly used to cover industrial structures in marine environments. Accelerated tests were carried out in a salt spray chamber with a maximum of 3000 hours of exposure, while other tests were conducted in the field in five areas in Chile over a period of two years. Coatings were assessed with measurements of thickness, adherence, and blistering. The behaviors of these coatings were assessed using electrochemical impedance spectroscopy (EIS techniques, measuring the evolution of an impedance module at 0.1 Hz. The results show that, after two years of exposure or after 3000 hours in the salt spray chamber, the two coatings still present adequate protective properties, with an impedance module value log |Z| greater than 106 Ω cm2. However, for all tests, comparing C5MB and C5IB coating systems, the latter is always less protective for the steel.
KW - Accelerated test
KW - Atmospheric exposure
KW - Carbon steel
KW - Corrosion
KW - Organic coatings
UR - http://www.scopus.com/inward/record.url?scp=85040108728&partnerID=8YFLogxK
U2 - 10.20964/2018.01.66
DO - 10.20964/2018.01.66
M3 - Article
AN - SCOPUS:85040108728
VL - 13
SP - 898
EP - 914
JO - International Journal of Electrochemical Science
JF - International Journal of Electrochemical Science
SN - 1452-3981
IS - 1
ER -