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

Use GIVING24 at checkout to save 20% on eCourses and books (some exclusions apply)!

51318-11573-Assessment of Long-term Durability of TDG Coated Steel Components in Marine Bridge Environment

Picture for Assessment of Long-term Durability of TDG Coated Steel Components in Marine Bridge Environment
Available for download

Thermal Diffusion Galvanizing (TDG) coating was investigated with and without various recommended topcoats for both short and long-term exposure. The samples were exposed in outdoor test condition for up to 45 months.

Product Number: 51318-11573-SG
Author: Md Ahsan Sabbir / Kingsley Lau / Saiada Fuadi Fancy / Dale DeFord
Publication Date: 2018
Industry: Coatings and Linings
$0.00
$20.00
$20.00

Coating systems for corrosion mitigation of structural steel have been widely used in aggressive humid environments. Novel materials continue to become available and interest lies in identifying improved material performance for bridge applications. However, long-term maintenance free service life criteria remain a challenge. As a part of research to assess novel coatings, Thermal Diffusion Galvanizing (TDG) coating was investigated with and without various recommended topcoats for both short and long-term exposure. The samples were exposed in outdoor test condition for up to 45 months. To assess the corrosion damage due to exposure, the coating was evaluated by visual inspection, coating thickness, pull-off strength measurement, optical microscopic evaluation and XRD analysis. The 45-month exposed samples were also evaluated by electrochemical techniques to identify electrochemical parameters of the coated TDG after extended outdoor exposure. The results obtained to date generally indicate good performance of TDG in outdoor settings. Although the developed zinc oxide provided indication of protection regardless of the type of topcoat tested, the application of topcoat is important for enhanced durability as corrosion of the TDG alloy layer can be possible.

 

Key words: Thermal Diffusion, Galvanize, Steel, Bridge, Coating, Long-term exposure.

Coating systems for corrosion mitigation of structural steel have been widely used in aggressive humid environments. Novel materials continue to become available and interest lies in identifying improved material performance for bridge applications. However, long-term maintenance free service life criteria remain a challenge. As a part of research to assess novel coatings, Thermal Diffusion Galvanizing (TDG) coating was investigated with and without various recommended topcoats for both short and long-term exposure. The samples were exposed in outdoor test condition for up to 45 months. To assess the corrosion damage due to exposure, the coating was evaluated by visual inspection, coating thickness, pull-off strength measurement, optical microscopic evaluation and XRD analysis. The 45-month exposed samples were also evaluated by electrochemical techniques to identify electrochemical parameters of the coated TDG after extended outdoor exposure. The results obtained to date generally indicate good performance of TDG in outdoor settings. Although the developed zinc oxide provided indication of protection regardless of the type of topcoat tested, the application of topcoat is important for enhanced durability as corrosion of the TDG alloy layer can be possible.

 

Key words: Thermal Diffusion, Galvanize, Steel, Bridge, Coating, Long-term exposure.

Product tags
Also Purchased
Picture for New Eco-Friendly Chemistry for Passivation of Galvanized Coatings
Available for download

51318-11532-New Eco-Friendly Chemistry for Passivation of Galvanized Coatings

Product Number: 51318-11532-SG
Author: Mary Jane Felipe / Sidney Dunn / Timothy Underwood / Monty Pifer / Dave Fulmer
Publication Date: 2018
$20.00

This paper details the use of non-phosphate and non-zinc corrosion inhibitors, able to rapidly passivate and protect galvanized coatings.

Picture for Methodologies to Evaluate Compatibility between Cathodic Protection and Vapor Corrosion Inhibitors for Tank Bottom Applications
Available for download

51318-11567-Methodologies to Evaluate Compatibility between Cathodic Protection and Vapor Corrosion Inhibitors for Tank Bottom Applications

Product Number: 51318-11567-SG
Author: Sujay Math / Pavan K. Shukla
Publication Date: 2018
$20.00

Compatibility between vapor corrosion inhibitors (VCI) and cathodic protection (CP) for the tank bottom application. Guidelines presented for selecting an effective corrosion mitigation strategy for combined VCI and CP systems.
Picture for Pitting Corrosion Resistance of a 316L Stainless Steel Manufactured by the Direct Metal Laser Sintering Process
Available for download

51318-11569-Pitting Corrosion Resistance of a 316L Stainless Steel Manufactured by the Direct Metal Laser Sintering Process

Product Number: 51318-11569-SG
Author: C. Prieto / D. Young / M. Singer / M. Clum / T. J. Cyders
Publication Date: 2018
$20.00

Evaluation of the pitting corrosion resistance of 316L stainless steel manufactured using direct metal laser sintering (DMLS). Rolled 316L stainless steel specimens with similar chemical composition were used as a reference.

 
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