Evaluation of wall thinning in carbon steel piping based on magnetic saturation pulsed eddy current testing method

Shejuan Xie, Zhenmao Chen, Haiqiang Zhou, Wenlu Cai, Toshiyuki Takagi, Tetsuya Uchimoto, Gerd Dobmann

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)

Abstract

Quantitative non-destructive evaluation of wall thinning in carbon steel piping is a difficult and urgent issue for safety of nuclear power plants. In this study, a magnetic saturation PECT (pulsed eddy current testing) method is proposed for this purpose, where a magnetic yoke is utilized to generate strong static magnetic field to saturate the piping material and to increase the skin depth, and the PECT is applied then in the magnetic saturation environment. The feasibility of the magnetic saturation PECT method for wall thinning detection in carbon steel piping is validated through numerical simulations. Firstly, the simulated polarization approach is adopted for the calculation of the static magnetic field distribution generated by the electromagnetic magnet, then the material permeability distribution is predicted according to the B-H curve of the targeted material. Finally the efficient PECT forward simulation tool is updated for the carbon steel based on the Ar (reduced A) method and the Fourier series strategy to validate the wall thinning detection in carbon steel material.

Original languageEnglish
Title of host publicationElectromagnetic Nondestructive Evaluation (XVII)
PublisherIOS Press
Pages296-303
Number of pages8
ISBN (Print)9781614994060
DOIs
Publication statusPublished - 2014

Publication series

NameStudies in Applied Electromagnetics and Mechanics
Volume39
ISSN (Print)1383-7281
ISSN (Electronic)1879-8322

Keywords

  • Carbon steel
  • Local wall thinning
  • Magnetic saturation pulsed ECT
  • Numerical simulation

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Xie, S., Chen, Z., Zhou, H., Cai, W., Takagi, T., Uchimoto, T., & Dobmann, G. (2014). Evaluation of wall thinning in carbon steel piping based on magnetic saturation pulsed eddy current testing method. In Electromagnetic Nondestructive Evaluation (XVII) (pp. 296-303). (Studies in Applied Electromagnetics and Mechanics; Vol. 39). IOS Press. https://doi.org/10.3233/978-1-61499-407-7-296