Abstract
We present the results of investigating the effect of annealing on the magnetostrictive characteristics of a grain-oriented electrical steel (GOES) with ordinary and refined domain structure. Not infrequently, the annealing of sheet samples leads to an increase in the electromagnetic induction B 100 and, simultaneously, to an enhancement in the specific electromagnetic losses P 1.7/50. In a GOES with a refined domain structure, the minimum absolute values of λ0-peak and λpeak-peak are observed before annealing. For these samples, after annealing, the magnetostrictive characteristics are impaired most severely. The mechanism for explaining this experimental fact has been suggested.
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