Abstract
The field dependences of the signal U~ (Н) across the measuring winding of an induction transducer, which are proportional to reversible magnetic permeability, have been measured in lowcarbon St3 steel plastically deformed by stretching under reversal of its magnetization along the major hysteresis loop both when unloaded and under an elastic tensile load. A method is proposed for isolating the contribution rendered to the measured signal by the irreversible displacement of only 90-degree domain walls. The method consists in subtracting the curve U~ (Н) measured under the elastic tensile load of a magnitude sufficient to compensate for internal compressive residual stresses in the sample from the no-load U~ (Н) curve. It has been established that the induced magnetic anisotropy field obtained with this method is virtually no different from that produced by the method in which no-load U~ (Н) curves are approximated.
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Original Russian Text © A.N. Stashkov, V.G. Kuleev, E.A. Shchapova, A.P. Nichipuruk, 2018, published in Defektoskopiya, 2018, No. 12, pp. 37–42.
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Stashkov, A.N., Kuleev, V.G., Shchapova, E.A. et al. Studying Field Dependence of Reversible Magnetic Permeability in Plastically Deformed Low-Carbon Steels. Russ J Nondestruct Test 54, 855–860 (2018). https://doi.org/10.1134/S1061830918120094
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DOI: https://doi.org/10.1134/S1061830918120094