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Pulsed eddy current thermography for corrosion characterisation

Lookup NU author(s): Professor Gui Yun TianORCiD, Dr Liang Cheng


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Corrosion characterisation on metal substrates is a major problem in the field of corrosion science and Non-destructive Evaluation (NDE). In this work, the electromagnetic NDE method, Pulsed Eddy Current (PEC) Thermography, has been applied to evaluate the corrosion on the mild steel plates. By analysis of heat induction and heat diffusion, early stage thermal images are proposed to avoid the lateral heat diffusion and to detect the corrosion progression more accurately. Principal Component Analysis (PCA) is used to extract the variation information from the different time period image sequences to improve the imaging quality and to validate the early detection theory. Results show that PEC thermography has potential as a rapid tool for corrosion characterisation.

Publication metadata

Author(s): Tian GY, He YZ, Cheng L, Jackson P

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 15th International Symposium on Applied Electromagnetics and Mechanics (ISEM)

Year of Conference: 2012

Pages: 269-276

ISSN: 1383-5416

Publisher: IOS Press


DOI: 10.3233/JAE-2012-1470

Library holdings: Search Newcastle University Library for this item

Series Title: International Journal of Applied Electromagnetics and Mechanics

ISBN: 18758800