Menu
Search
Filters
Close
Menu

11183 Predicting Conditions in Coating Disbonded Regions on Buried Pipes in Nuclear Plants

Picture for 11183 Predicting Conditions in Coating Disbonded Regions on Buried Pipes in Nuclear Plants
Available for download
Product Number: 51300-11183-SG
ISBN: 11183 2011 CP
Author: Fengmei Song
Publication Date: 2011
$0.00
$20.00
$20.00
Corrosion would not be a concern if the coating on a buried pipe is well bonded or completely intact (without holidays). The danger occurs when the coating is disbonded, has a holiday and shields cathodic protection (CP) current. The corrosion severity in the coating disbonded region is determined by the local environment and the ability of CP current to penetrate into the disbonded region. Unfortunately, the pipeline industry has so far been lacking field techniques or procedures for measuring the corroding conditions in a coating-disbonded region irrespective of the presence of CP. A model is developed that is capable of making predictions of the corroding conditions in the coating disbonded region, including chemistry, potential and corrosion rate. This model is built upon fundamental principles and reduced to simple algorithms that can allow for field application. This paper reports the model, the results and the techniques for field application.

Keywords: steel, pipeline, cathodic protection, disbonded coating, corrosion, field procedure
Corrosion would not be a concern if the coating on a buried pipe is well bonded or completely intact (without holidays). The danger occurs when the coating is disbonded, has a holiday and shields cathodic protection (CP) current. The corrosion severity in the coating disbonded region is determined by the local environment and the ability of CP current to penetrate into the disbonded region. Unfortunately, the pipeline industry has so far been lacking field techniques or procedures for measuring the corroding conditions in a coating-disbonded region irrespective of the presence of CP. A model is developed that is capable of making predictions of the corroding conditions in the coating disbonded region, including chemistry, potential and corrosion rate. This model is built upon fundamental principles and reduced to simple algorithms that can allow for field application. This paper reports the model, the results and the techniques for field application.

Keywords: steel, pipeline, cathodic protection, disbonded coating, corrosion, field procedure
Product tags
Also Purchased
Picture for 11181 Methodology for Surveying Buried Plant Piping for Coating Condition and CP Effectiveness
Available for download

11181 Methodology for Surveying Buried Plant Piping for Coating Condition and CP Effectiveness

Product Number: 51300-11181-SG
ISBN: 11181 2011 CP
Author: Andy Smart, Steve Biagiotti, Andy Jensen and Eric Elder
Publication Date: 2011
$20.00
Picture for 11185 Evaluation of Coatings for Buried Piping in Nuclear Power Plants
Available for download

11185 Evaluation of Coatings for Buried Piping in Nuclear Power Plants

Product Number: 51300-11185-SG
ISBN: 11185 2011 CP
Author: Jon R. Cavallo
Publication Date: 2011
$20.00
Picture for 11182 Cathodic Protection Design Considerations for Buried Nuclear Piping
Available for download

11182 Cathodic Protection Design Considerations for Buried Nuclear Piping

Product Number: 51300-11182-SG
ISBN: 11182 2011 CP
Author: Steven F. Daily
Publication Date: 2011
$20.00
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