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Inspection of Local Wall Thinning by Different Magnetic Methods

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Abstract

The applicability of three different magnetic methods, Magnetic flux leakage technique (MFL), Magnetic adaptive testing and Metal memory method (MMM) was tested for detection of an artificial slot in a system of three steel plates. It was found that MAT resulted in the best signal/noise ratio, and it is capable to detect the bottom side slot even in the three layer configuration. MFL also resulted in acceptable signal/noise ratio in the two layer configuration, but it was not able to detect the slot through two other plates. MMM was not found to be suitable for unstressed and un-magnetized slot detection in the given experimental arrangement.

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Acknowledgements

This work was supported by the Hungarian Scientific Research Fund (Project K 111662), by the Researcher Exchange Program between the Czech Academy of Sciences and Hungarian Academy of Sciences. Co-author I.T. also appreciates financial support by project No. 14-36566G of the Czech Science Foundation.

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Authors and Affiliations

  1. Centre for Energy Research, Institute of Technical Physics and Materials Science, Konkoly Thege Miklós út 29-33, Budapest, 1121, Hungary

    G. Vértesy & A. Gasparics

  2. Institute of Physics ASCR, Na Slovance 2, 18221, Prague, Czech Republic

    I. Tomáš

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  1. G. Vértesy
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  2. A. Gasparics
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  3. I. Tomáš
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Correspondence to G. Vértesy.

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Vértesy, G., Gasparics, A. & Tomáš, I. Inspection of Local Wall Thinning by Different Magnetic Methods. J Nondestruct Eval 37, 65 (2018). https://doi.org/10.1007/s10921-018-0515-z

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