Off-line measurement of decarburization of steels using a multifrequency electromagnetic sensor

X. J. Hao, W. Yin, M. Strangwood, A. J. Peyton, P. F. Morris, C. L. Davis

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A multifrequency electromagnetic sensor was used to measure decarburization in steel. Decarburization samples were generated by heat treating Fe-0.8 wt.% C steel rods for various times in air at 1000 °C. The inductance value of the sensor at different frequencies varied as a function of decarburization depth due to the difference in magnetic permeability between ferrite and pearlite. The relationship between sensor output and decarburized layer thickness was modelled using finite element software. © 2008 Acta Materialia Inc.
    Original languageEnglish
    Pages (from-to)1033-1036
    Number of pages3
    JournalScripta Materialia
    Volume58
    Issue number11
    DOIs
    Publication statusPublished - Jun 2008

    Keywords

    • Decarburization
    • Microstructure
    • Modelling
    • Non-destructive testing
    • Steel

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