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Changes in Magnetization and in Dislocation Arrangements in Cyclically Deformed Iron and Nickel

  • P. Ruuskanen
  • P. Kettunen
Chapter
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series

Abstract

There are a lot of experimental results concerning the effect of stress, elastic and plastic deformation and dislocation structure on the magnetic properties of ferromagnetic material. Atherton et al. measured stress induced changes in the magnetization of steel pipesl. Schroeder et al. studied domain arrangement in plastically deformed iron single crystals2. Hayashi et al. found that the application of an oscillating magnetic field during tensile testing reduced the flow stress of nickel3. Jiles and Atherton4,5D reported changes in magnetization during one stress cycle as a function of an external magnetic field. They have also reported a theory that describes ferromagnetic hysteresis and the effect of stress on magnetization. This theory is based on the Langevins theory of paramagnetism. Jiles and Atherton4 have experimentally shown that the modified Langevins equation gives the change in magnetization as a function of the applied magnetic field.

Keywords

Domain Wall Cyclic Loading Magnetic Field Strength Fatigue Limit Stress Amplitude 
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References

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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • P. Ruuskanen
    • 1
  • P. Kettunen
    • 1
  1. 1.Institute of Materials Science TampereUniversity of TechnologyFinland

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