Abstract

Behavior of aftereffect in magnetization process of annealed, quenched, and cold-worked ferromagnetic polycrystalline nickel under constant applied fields is studied. The effect of relaxation of electronic circuit response of measurement system in the experiment is eliminated. The present results do not conform with the proposed early stage magnetization mechanisms such as interstitial atom diffusion, interstitial dumbbell rotation and dislocation interaction. The relaxations of all samples followed the Voigt–Kelvin-type viscoelastic behavior with a short unique time constant τ=1.50 sec for all samples.

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