Menu
Search
Filters
Close
Menu

Celebrate World Corrosion Awareness Day with 20% off eCourses and eBooks with code WCAD2024 at checkout!

Pulsed Eddy Current Advanced Data Analysis – Unlocking new possibilities for vessels inspection

Picture for Pulsed Eddy Current Advanced Data Analysis – Unlocking new possibilities for vessels inspection
Available for download
Product Number: 51321-16466-SG
Author: Vincent Demers-Carpentier, Ph.D/Andréanne Potvin/Gabriel Cyr
Publication Date: 2021
$0.00
$20.00
$20.00

Pulsed Eddy Current (PEC) has proven to be an efficient NDT technique well suited for the detection and assessment of Corrosion Under Insulation (CUI) on pipes and vessels considering the recent technological advances enabling array of PEC with dynamic acquisition. Those breakthroughs now provide a productive solution to perform high-resolution inspection over large areas. Substantial highresolution scan zones on complex components such as vessels highlight one of the main limitations of PEC which is the cross-sensitivity of the method regarding material properties variations. This limitation of PEC technology has led in the past to false positives. The objective of this paper is to present an information-rich alternative graphical representation called the Tau-scan which helps users make the correct call in complex situations. The various signatures on the Tau-scan are shown and explained for a variety of manufactured samples with machined defects as well as real field data related to corrosion on insulated vessels. It is shown that the novel graphical representation is efficient in overcoming one of PEC current limitations as it significantly helps reduce potential false positives, thereby greatly improving user confidence during data analysis and unlock new possibilities for vessels inspection.

Key words: Pulsed Eddy Current (PEC), Corrosion Under Insulation (CUI), Vessel Inspection, NonDestructive Testing (NDT), Corrosion

Pulsed Eddy Current (PEC) has proven to be an efficient NDT technique well suited for the detection and assessment of Corrosion Under Insulation (CUI) on pipes and vessels considering the recent technological advances enabling array of PEC with dynamic acquisition. Those breakthroughs now provide a productive solution to perform high-resolution inspection over large areas. Substantial highresolution scan zones on complex components such as vessels highlight one of the main limitations of PEC which is the cross-sensitivity of the method regarding material properties variations. This limitation of PEC technology has led in the past to false positives. The objective of this paper is to present an information-rich alternative graphical representation called the Tau-scan which helps users make the correct call in complex situations. The various signatures on the Tau-scan are shown and explained for a variety of manufactured samples with machined defects as well as real field data related to corrosion on insulated vessels. It is shown that the novel graphical representation is efficient in overcoming one of PEC current limitations as it significantly helps reduce potential false positives, thereby greatly improving user confidence during data analysis and unlock new possibilities for vessels inspection.

Key words: Pulsed Eddy Current (PEC), Corrosion Under Insulation (CUI), Vessel Inspection, NonDestructive Testing (NDT), Corrosion

Product tags
Also Purchased
Picture for Optimized Pulsed Anodization for Corrosion Protection of Aluminum Silicon Alloys
Available for download

Optimized Pulsed Anodization for Corrosion Protection of Aluminum Silicon Alloys

Product Number: 51321-16431-SG
Author: Marco Bandiera/Arianna Pavesi/Massimiliano Bestetti/Alessandro Mancini/Andrea Bonfanti/Federico Bertasi
Publication Date: 2021
$20.00
Picture for Qualification and Application of Linings for Aboveground Storage Tanks
Available for download

Qualification and Application of Linings for Aboveground Storage Tanks

Product Number: 51321-16445-SG
Author: Jiajun (Jeff) Liang/Amal Al-Borno/Amy Baxter/Haralampos Tsaprailis
Publication Date: 2021
$20.00
Picture for 06312 Application of Pulsed Eddy Current Corrosion
Available for download

06312 Application of Pulsed Eddy Current Corrosion Monitoring in Refineries and Oil Production Facilities

Product Number: 51300-06312-SG
ISBN: 06312 2006 CP
Author: Paul C.N. Crouzen, Ian J. Munns, W. Verstijnen, Roy C. Hulsey
$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