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Russian Journal of Nondestructive Testing

, Volume 54, Issue 11, pp 776–783 | Cite as

Structural Sensitivity of the Parameters of Asymmetric “Coercive Return–Magnetization” Cycle in Heat-Treated Low-Carbon Steels

  • V. N. KostinEmail author
  • O. N. Vasilenko
  • S. G. Sandomirskii
Electromagnetic Methods
  • 2 Downloads

Abstract

It has been shown both theoretically and experimentally that as the tempering temperature of quenched low-carbon steels increases up 600–650°C, the values of induction on the asymmetric “coercive return–magnetization” cycle decrease monotonically at fixed, proportional to the coercive force, values of magnetic field. This effect is associated with a transition from structures with a uniaxial magnetic anisotropy (after quenching) to structures with three easy-magnetization axes (after hightemperature tempering). Within the model of prevailing 180° displacements, numerical estimates have been produced for the magnetic parameters of the “coercive return–magnetization” cycle in these magnetic structures. The estimates are in a good agreement with experimental data. It is shown that induction resulting from the inversion (polarity switching) of coercive field exhibits a structural sensitivity that is similar to that demonstrated by coercive-return magnetization and is therefore a promising parameter for magnetic structural analysis. It has been demonstrated that the proposed parameter can be measured locally using the DIUS-1.15M mobile hardware-software system.

Keywords

magnetic structural analysis spontaneous magnetization vector remanent magnetization coercive return magnetization asymmetric cycle parameter hardware-software system of magnetic structural analysis 

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • V. N. Kostin
    • 1
    • 2
    Email author
  • O. N. Vasilenko
    • 1
    • 2
  • S. G. Sandomirskii
    • 3
  1. 1.Mikheev Institute of Metal PhysicsUral Branch, Russian Academy of SciencesYekaterinburgRussia
  2. 2.Ural Federal UniversityYekaterinburgRussia
  3. 3.Joint Institute of Mechanical EngineeringNational Academy of Sciences of BelarusMinskBelarus

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