Abstract
The effect of elastic deformation in tension (compression) torsion, internal pressure loading, and their combination on the magnetic characteristics of 09G2S pipe steel is studied. It is found that in the cases of compression, torsion, and internal pressure loading, the coercive force, residual induction, and maximum magnetic permeability are uniquely dependent on the stress. It is shown that the strength of the applied magnetic field in which the magnetostriction becomes negative decreases under the action of tensile stresses. It is found that in the case of combined tension (compression) and torsion, shear stresses weaken the effect of normal stresses on the magnetic properties. In the case of a combination of all three types of loading, increasing internal pressure leads to an increase in the coercive force and a decrease in the residual induction and maximum magnetic permeability. Measurement results were used to plot the dependence of the stress intensity on the coercive force for different values of the Lode parameter, which determines the type of stress state of the object.
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Original Russian Text © E.S. Gorkunov, S.M. Zadvorkin, A.N. Mushnikov, S.V. Smirnov, E.I. Yakushenko.
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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 55, No. 3, pp. 181–191, May–June, 2014.
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Gorkunov, E.S., Zadvorkin, S.M., Mushnikov, A.N. et al. Effect of mechanical stresses on the magnetic characteristics of pipe steel. J Appl Mech Tech Phy 55, 530–538 (2014). https://doi.org/10.1134/S002189441403016X
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DOI: https://doi.org/10.1134/S002189441403016X