Browse > Article
http://dx.doi.org/10.4283/JKMS.2006.16.6.305

Remote Field Eddy Current Testing for Detection of Stress Corrosion Cracks in Gas Transmission Pipelines  

Kim, Dae-Won (Multimedia Engineering, Dankook University)
Publication Information
Journal of the Korean Magnetics Society / v.16, no.6, 2006 , pp. 305-308 More about this Journal
Abstract
Magnetic flux leakage (MFL) pigs are traditionally used for the detection of gross corrosion on steel pipelines used for the transmission of natural gas. Alternative nondestructive evaluation (NDE) modalities are required for the detection of stress corrosion cracking (SCC) which tends to exist in colonies oriented axially along the length of the pipeline. This paper describes the use of multiphase rotating magnetic fields in the remote region of the probe as a possible SCC detection mechanism. Details of a prototype pig and test rig are given and the challenges associated with the finite element modeling of the device are discussed. Initial experimental results show that this novel NDE modality is sensitive to axially oriented tight cracks.
Keywords
magnetic materials; defects; nondestructive evaluation; remote field; eddy current; stress corrosion cracks;
Citations & Related Records
연도 인용수 순위
  • Reference
1 L. Udpa, S. Mandayam, S. S. Udpa, Y. S. Sun, and W. Lord, 'Developments in gas pipeline inspection technology', Materials Evaluation, 54(4), 467 (1996)
2 W. Lord, Y. S. Sun, S. S. Udpa, and S. Nath, 'A finite element study of the remote field eddy current phenomenon', IEEE Transactions on Magnetics, 24(1), 435 (1988)   DOI   ScienceOn
3 G. Kobidze and W. Lord, 'Tight crack modeling for the finite element simulation of inspection tools in pipelines', Materials Evaluation, 56(10), 1223 (1998)
4 S. Yang, Y. Sun, L. Udpa, S. S. Udpa, and W. Lord, 'Application of perturbation methods in finite element analysis of stress corrosion cracking', IEEE Transactions on Magnetics, 36(4), 1714 (2000)   DOI   ScienceOn
5 G. Katragadda, J. T. Si, W. Lord, Y. S. Sun, S. S. Udpa, and L. Udpa, 'Alternative magnetic flux leakage modalities for pipeline inspection', IEEE Transactions on Magnetics, 32(3), 1581 (1996)   DOI   ScienceOn