Nondestructive characterization of ductile cast iron by magnetic adaptive testing

G. Vertesy, T. Uchimoto, I. Tom, T. Takagi

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


This paper reports correlation of magnetic descriptors with Brinell hardness and conductivity of ductile cast iron, aiming to develop a novel nondestructive method by magnetic adaptive testing. Four series of cast iron staircase-shaped samples were investigated by this method, where different cooling rates of samples during casting resulted in different structures of each sample. The flat samples were magnetized by an attached yoke, and sensitive descriptors were obtained from a proper evaluation, based on the measurements of series of magnetic minor hysteresis loops, without magnetic saturation of the samples. Results of the nondestructive magnetic tests were compared with destructive mechanical measurements of Brinell hardness and conductivity and good correlation was found between them.

Original languageEnglish
Pages (from-to)3117-3121
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Issue number20
Publication statusPublished - 2010 Oct


  • Cast iron
  • Magnetic adaptive testing
  • Magnetic hysteresis
  • Magnetic NDE


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