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Capacity test of ultrasonic equipment used for crack detection in railway application

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Abstract

Manganese crossings are widely used in the railway sector because of their self-hardening properties, but one major disadvantage is that maintenance actions using condition monitoring of internal flaws are problematic to perform since manganese material is coarse-grained with internal reflections. In the present study, spike- and square-pulsed ultrasonic apparatus, as well as phased aperture and time-corrected gain, together with suitable probes, was tested on manganese material in order to increase the understanding of the signal–noise ratio and the capacity to detect deeply placed internal flaws. Some of the most important results indicate that square pulses and time-corrected gain will increase the signal–noise ratio and also increase the capacity to find deeply placed flaws.

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Acknowledgments

The authors wish to thank Banverket (the Swedish Rail Administration), CSM NDT and Holger Andreasen AB for supporting this study.

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Authors and Affiliations

  1. Division of Operation & Maintenance Engineering, Luleå University of Technology, SE-971 87, Luleå, Sweden

    Jan Lundberg, Alf Bohlin & Malin Syk

Authors
  1. Jan Lundberg
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  2. Alf Bohlin
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  3. Malin Syk
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Correspondence to Jan Lundberg.

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Lundberg, J., Bohlin, A. & Syk, M. Capacity test of ultrasonic equipment used for crack detection in railway application. Int J Syst Assur Eng Manag 2, 163–168 (2011). https://doi.org/10.1007/s13198-011-0074-5

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  • DOI: https://doi.org/10.1007/s13198-011-0074-5

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