AMPP Store - Individual Conference Papers

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40-Year Maintenance Free Coating Solution for Offshore Structures

Product Number: 51324-20591-SG

Author: Darren Ward; Mike O'Donoghue; Vijay Datta

Publication Date: 2024

$40.00

Offshore assets such as those found on wind farms are being designed to have extended lifetimes of more than 40 years to offer a sustainable form of energy generation. With offshore maintenance considered a hazardous and expensive process, owners are looking for low or maintenance free solutions to protect their assets. The challenge to the coating manufacturer is twofold, firstly to design a coating system that offers a maintenance free solution in a highly corrosive environment and secondly demonstrating long term performance. This paper will describe a 40-year case history of a coating system applied to the hull of a offshore TLP with submerged, splash/tidal, and atmospheric zone. We will describe both the technology approach using high loadings of lamellar glass flake to enhance both abrasion and mechanical properties and secondly demonstrate the in-service properties of the coating system after 40 years exposure including visual appearance, adhesion, cross sectional optical microscopy and electrical impedance spectroscopy (EIS). The coating integrity has been well maintained by a multiple coating application. We will discuss the key product attributes that are relevant to providing a high durability coating solution for extreme environments. We will also introduce a new international standard related to the offshore wind industry with particular focus on extending asset lifetime through appropriate coating specification and selection.

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4496 Corrosion in SCWO Plants Processing Chlorinated Substances: Aspects of Corrosion Mechanisms and Kinetics for Binary Ni-Cr Alloys

Product Number: 51300-04496-SG

ISBN: 04496 2004 CP

Author: Juergen Konys, J. Novotny, and J. Hausselt, Institut fur Materialforschung III; C Schroer, FZ Karlsr

$20.00

Available for download

50 mV As a Screening Criteria for Shorted Casings – Case Study

Product Number: 51323-18899-SG

Author: Keith Parker, Len Krissa, Kris Hoisington

Publication Date: 2023

$20.00

While performing cathodic protection surveys, carrier pipe and casing potential readings are typically recorded at the same test station location near the end of a casing. Comparing these potentials should reveal a difference between the cathodically protected pipe versus an unprotected and electrically isolated casing. The difference in potentials is one of available tests to determine whether a casing may be electrically shorted to the carrier pipe. The pipe-to-electrolyte and casing-to-electrolyte potential comparison is usually the initial “screening” method.