AMPP Paper 16219-2021: Modified Cathodic Disbondment Test Methods

�� FREE PREVIEW (First 5 Pages) ✔ First 5 pages free to download · No email required · Full document available after purchase This paper details modified Cathodic Disbondment (CD) test methods developed to evaluate the performance of pipeline coatings in challenging field conditions, specifically those found in the Rockies of British Columbia, Canada. The research compares Fusion Bonded Epoxy (FBE) and High Performance Powder Coating (HPPC) performance, considering factors like abrasion from pyrite particles and varying pH levels. The study includes an overhead stirring CD test and a pH-controlled CD test, utilizing Scanning Electron Microscopy and dry film thickness studies. Key findings indicate HPPC exhibits significantly less disbondment than FBE, particularly in acidic environments. The paper also explores CD mechanisms based on solution pH and provides insights for coating selection in specific service conditions. The first five pages of the paper are available for free preview.