Dependence of deformation-induced magnetic field on plastic deformation for SUS304 stainless steel

Hongmei Li, Zhenmao Chen, Yong Li, Toshiyuki Takagi, Tetsuya Uchimoto, Naoki Chigusa, Yasuhiko Yoshida

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


In this paper, the correlation between plastic deformation and the deformation-induced magnetic field was experimentally investigated for the SUS304 austenitic stainless steel. Test-pieces with different shapes were fabricated to produce different strain distribution. Various plastic tensile loads were imposed into the specimens to introduce plastic deformations of different levels. The residual strain distributions at the surfaces of the specimens were measured by an optical 2D strain measurement system during loading process while the distributions of the deformation-induced magnetic fields above the specimens were measured by using a fluxgate magnetometer after each loading cycle. The experimental results show that the amplitudes of the magnetic field have a clear and repeatable relationship with the maximum residual strains for all the specimens, and the relationship is independent of the strain distribution. Based on the experimental results, the mechanism of the deformation-induced magnetic field was discussed, and a NonDestructive Evaluation (NDE) method was proposed for the quantitative evaluation of plastic deformation in the SUS304 stainless steel.

Original languageEnglish
Pages (from-to)17-26
Number of pages10
JournalInternational Journal of Applied Electromagnetics and Mechanics
Issue number1
Publication statusPublished - 2012


  • Plastic deformation
  • SUS304 austenitic stainless steel
  • deformation-induced magnetic field
  • nondestructive evaluation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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