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Meeting Materials Science & Technology 2020
Symposium Substrate Protection for Corrosion Prevention
Presentation Title Advanced Composite Coating for Carbon Steel Corrosion Prevention
Author(s) Fangming Xiang, Christy M. Koerner, David P. Hopkinson, Margaret E. Ziomek-Moroz
On-Site Speaker (Planned) Fangming Xiang
Abstract Scope In natural gas transmission pipelines, conventional coatings based on epoxy, paint, and polyethylene are widely used to prevent carbon steel corrosion due to reasonable barrier property and high chemical stability. However, these conventional coatings are not impermeable to corrosive species and may not be tightly bonded to the steel surface, leading to underfilm corrosion. A 60-nm-thick layer-by-layer (LbL) assembly containing a polymer (polyethylenimine) and a corrosion inhibitor (tannic acid) can completely prevent water-induced corrosion and significantly enhance surface adhesion through coordination and ionic bonding, but it tends to swell and subsequently lose its corrosion resistance when exposed to high concentrations of CO2 and NaCl. By using a conventional coating as the top layer and a LbL assembly as the bottom layer, we have created a composite coating that combines the complementary advantages of both constituent layers, demonstrating a synergistic approach for maximizing the corrosion resistance of anti-corrosion coatings.
Proceedings Inclusion? Planned: At-meeting proceedings


Advanced Composite Coating for Carbon Steel Corrosion Prevention
Characterizations of Corrosion Tested CFRC-AZ31B Joint by Friction Self-pierce Riveting Process
Corrosion Resistant Coatings on 6061 Aluminum
Effect of Surface Coating and PTFE Tape Insulation on Galvanic Corrosion of AZ31B Bolt-joined with CFRP
Enhancing Corrosion Resistance of Steel Substrates with Reduced Graphene Oxide Reinforced Polymer Composite Coatings
The Effect of Mg added Al-Si Coating on the Corrosion of Hot-stamped Boron Steels

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