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Six-Year Evaluation of Thermal-Sprayed Coating of ZnAl in Tropical Marine Environments
Joint Authors
Romero, Nathalie
Sánchez, Miguel
Salas, Orlando
Tosaya, Adriana
Rojas, Daniela
Troconis de Rincón, Oladis
Campos, William
Source
International Journal of Corrosion
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-01-12
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The main objective of this research was to evaluate the performance of thermal-sprayed coating of Zn/Al (double layer) after six years of exposure, with and without the use of sealant (wash primer) in tropical marine environments of very high aggressiveness: La Voz Station (located at the Peninsula de Paraguaná/Falcón State) and Lake Maracaibo Crossing Station (located at Zulia State), in Venezuela.
To that effect, carbon steel coupons (100 mm × 150 mm × 2 mm) were sprayed by flame process.
The coupons were characterized by means of initial weight, thickness, metallographic, adherence, and roughness, being evaluated monthly by visual inspection during six years.
After removal, the coupons were evaluated by microscopic analysis to determine the morphology of attack, microstructure, penetration of contaminants, composition, and morphology of corrosion products.
The results showed that after six years, the double-layer system represents an excellent choice for corrosion protection of steel by combining the galvanic protection of zinc with the erosion resistance of aluminum.
However, due to the erosion-corrosion effect, a sealant such as wash primer can be used in order to extend its service life.
American Psychological Association (APA)
Salas, Orlando& Troconis de Rincón, Oladis& Rojas, Daniela& Tosaya, Adriana& Romero, Nathalie& Sánchez, Miguel…[et al.]. 2012. Six-Year Evaluation of Thermal-Sprayed Coating of ZnAl in Tropical Marine Environments. International Journal of Corrosion،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-463087
Modern Language Association (MLA)
Salas, Orlando…[et al.]. Six-Year Evaluation of Thermal-Sprayed Coating of ZnAl in Tropical Marine Environments. International Journal of Corrosion No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-463087
American Medical Association (AMA)
Salas, Orlando& Troconis de Rincón, Oladis& Rojas, Daniela& Tosaya, Adriana& Romero, Nathalie& Sánchez, Miguel…[et al.]. Six-Year Evaluation of Thermal-Sprayed Coating of ZnAl in Tropical Marine Environments. International Journal of Corrosion. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-463087
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-463087