Russian Journal of Nondestructive Testing

, Volume 40, Issue 7, pp 469–475 | Cite as

Effect of the decay rate of a magnetizing field on the detection of flaws in the presence of residual magnetization

  • G. S. Shelikhov
Magnetic and Eddy Current Methods


An increase in the decay rate of a magnetizing field (to 0.01 s) favors the adequate detection of surface flaws in comparison with the slow (0.5–6 s) field decay (slow current cut-off). The circuitry of a power unit for a flaw detector, which allows the realization of the required rate of reduction, is suggested.


Structural Material Decay Rate Flaw Detector Surface Flaw Power Unit 
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    Betz, C.E. 1967Principles of Magnetic Particle TestingMagnaflux CorporationChicagoGoogle Scholar
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    E709-01, Standard Guide for Magnetic Particle Examination, ASTM.Google Scholar

Copyright information

© MAIK “Nauka/Interperiodica” 2004

Authors and Affiliations

  • G. S. Shelikhov

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