...A. Fatehi; A. Eslami; M.A. Golozar; K. Raeissi; R. Ashari In this study, the effect of cathodic protection and sulfate-reducing bacteria (SRB) on corrosion and potential distribution of pipeline steel under simulated coating disbondment was investigated. In this regard, a setup simulating a coating...

...M. Echeverría; C.M. Abreu; K. Lau; C.A. Echeverría The presence of Zn pigments combined with the barrier effect of a multilayer paint system (Zn-rich epoxy/epoxy/polyurethane-coated steel) has mitigated the disbondment process in natural and overprotection cathodic conditions. The evaluation...

... cathodic current (and hence an ability to support corrosion macrocells with through-the-steel defects) no greater than that for ECR. ‡ Corresponding author. E-mail: [email protected] . 03 2009 05 2009 NACE International 2009 corrosion disbondment dual-coat epoxy rebar zinc...

...S.Y. Li; Y.G. Kim; Y.T. Kho; T. Kang Quantitative prediction models for the corrosion of cathodically protected line pipe steel under a disbonded coating were presented. The optimization plot for the cathodic protection (CP) of crevices beneath a disbonded sleeve applied at the girth weld joint...

...D.-T. Chin; G.M. Sabde Current and potential distributions inside the crevice of a simulated disbonded coating with a holiday during cathodic protection (CP) of steel were measured experimentally in 0.001 M to 0.6 M sodium chloride (NaCl) solutions covering a range of conductivity from 0.012 Ω...

... disbondment epoxy coatings immersion testing organic coatings polymer coatings porosity thermo-osmosis utilities Electric utilities use polymer coatings for corrosion protection in a variety of locations, such as cooling towers, water boxes, and tubesheets. In some cases, these coatings...

...R. Brousseau; S. Qian Pipeline corrosion frequently persists underneath disbonded coatings on pipelines that appear to be well protected cathodically. Application of higher cathodic potentials for improved protection may produce hydrogen gas (H₂) bubbles that block current flow...

...X. Mao; X. Liu; R.W. Revie Corrosion behavior of grade 550 (X-80) pipeline steel with coating disbondments was studied in a range of bicarbonate ( HCO 3 − ) solutions using a potentiodynamic polarization technique. Corrosion morphology of the steel was examined using optical...

... formulated to predict the macrocell current distribution along idealized substructure columns, as a function of concrete resistivity, column length, and ECR surface condition. 07 1991 National Association of Corrosion Engineers 1991 epoxy coating damage corrosion disbondment...