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

  • Magnetic and eddy current methods
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Russian Journal of Nondestructive Testing Aims and scope Submit manuscript

Abstract

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.

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REFERENCES

  1. D.A. Shturkin (1975) ArticleTitleMagnetization of Articles with Low Shape Permeability for Nondestructive Testing Defektoskopiya 5 63–73

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  2. C.E. Betz (1967) Principles of Magnetic Particle Testing Magnaflux Corporation Chicago

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  3. E709-01, Standard Guide for Magnetic Particle Examination, ASTM.

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Authors
  1. G. S. Shelikhov
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Additional information

Translated from Defektoskopiya, Vol. 40, No. 7, 2004, pp. 53–61.

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Shelikhov, G.S. Effect of the decay rate of a magnetizing field on the detection of flaws in the presence of residual magnetization. Russ J Nondestruct Test 40, 469–475 (2004). https://doi.org/10.1007/s11181-005-0006-z

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  • DOI: https://doi.org/10.1007/s11181-005-0006-z

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