Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

07639 Long Term Performance of Thermal Spray Coatings in Tropical Marine Environments

Picture for 07639 Long Term Performance of Thermal Spray Coatings in Tropical Marine Environments
Available for download
Product Number: 51300-07639-SG
ISBN: 07639 2007 CP
Author: O. Rincon, N. Romero, O. Salas, M. Sanchez, A. Valdivieso, A. Uzcategui, and A. Rincon
Publication Date: 2007
$0.00
$20.00
$20.00
The objective of this research is to study the long-term performance of thermal-sprayed Aluminum, Zinc and Zn/Al coatings in tropical marine environments. To that effect, carbon steel coupons (10 cm x 15 cm x 3 mm) were sprayed using two different processes (electric arc and flame spray), with and without the application of two additional layers of sealer. Three sealers were evaluated: two wash primers of different industries, and a phenol sealer. The sheets were exposed for two years in two atmospheric stations, La Voz (coastal marine atmosphere), and the Towers of the Lake Maracaibo Crossing (marine atmosphere), supplemented by laboratory-accelerated tests: Climatic Chamber and intermittent salt spray (ISO 11474). The sheets were characterized by means of initial weight, thickness, metallography, adhesion, roughness, with monthly evaluations by visual and photographic inspection for two years. The results showed that in these aggressive atmospheres, where the wind effect is high (> 11.3 km/h), the performance of the thermal sprayed Zn/Al coating is excellent, even without sealer, providing galvanic protection to the substrate. In the case of Zn and Al coatings, a phenol-based pore sealer should be used to provide a complete cover for the irregularities of this type of coating.
The objective of this research is to study the long-term performance of thermal-sprayed Aluminum, Zinc and Zn/Al coatings in tropical marine environments. To that effect, carbon steel coupons (10 cm x 15 cm x 3 mm) were sprayed using two different processes (electric arc and flame spray), with and without the application of two additional layers of sealer. Three sealers were evaluated: two wash primers of different industries, and a phenol sealer. The sheets were exposed for two years in two atmospheric stations, La Voz (coastal marine atmosphere), and the Towers of the Lake Maracaibo Crossing (marine atmosphere), supplemented by laboratory-accelerated tests: Climatic Chamber and intermittent salt spray (ISO 11474). The sheets were characterized by means of initial weight, thickness, metallography, adhesion, roughness, with monthly evaluations by visual and photographic inspection for two years. The results showed that in these aggressive atmospheres, where the wind effect is high (> 11.3 km/h), the performance of the thermal sprayed Zn/Al coating is excellent, even without sealer, providing galvanic protection to the substrate. In the case of Zn and Al coatings, a phenol-based pore sealer should be used to provide a complete cover for the irregularities of this type of coating.
Product tags
Also Purchased
Picture for 04022 Experiences on Thermal Spray Aluminum
Available for download

04022 Experiences on Thermal Spray Aluminum (TSA) Coating for Offshore Structures

Product Number: 51300-04022-SG
ISBN: 04022 2004 CP
Author: Desmond K.K. Tiong, Shell International; Halimah Pit, Sarawak Shell Berhad
Publication Date: 2004
$20.00

Since 1982, there has been a move to Thermal Sprayed Aluminum (TSA) coating in the “splash zone” of offshore structures.  Our experience indicates that an experience applicator, good surface preparation and quality of wire combined to achieve required thickness and apply the sealer to seal the entire surface.

 
Picture for 99616 Thermal Spray Aluminium Past, Present
Available for download

99616 Thermal Spray Aluminium Past, Present and Future

Product Number: 51300-99616-SG
ISBN: 99616 1999 CP
Author: T Rosbrook, Dr M.A.M. Swidzinski, C.J. Houghton
$20.00
Picture for 04717 Surface Preparation for Optimum Thermal
Available for download

04717 Surface Preparation for Optimum Thermal Spray Adhesion and Long Life

Product Number: 51300-04717-SG
ISBN: 04717 2004 CP
Author: Hugh J. Roper, Wheelabrator Abrasives
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support