Open AccessThe effect of elastic deformation on the minor hysteresis loops of low carbon steel
Author(s) -
А. Н. Мушников,
Э. С. Горкунов,
С. М. Задворкин,
L. S. Goruleva,
K. D. Kryucheva
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/966/1/012055
Subject(s) - materials science , remanence , ultimate tensile strength , hysteresis , permeability (electromagnetism) , magnetic hysteresis , magnetization , composite material , carbon steel , condensed matter physics , stress (linguistics) , magnetic field , chemistry , physics , corrosion , biochemistry , quantum mechanics , membrane , linguistics , philosophy
The effect of elastic tensile deformations on the magnetic permeability of a structural low-carbon steel 20K (0.23 % C, 0.20 % Si, 0.46 % Mn) at various magnetic states was experimentally studied. To obtain these parameters, the measurements of minor hysteresis loops, which begin in the demagnetized state and in the remanent magnetization state, were carried out. The maximum tensile stress equal to 250 MPa that corresponds to 90 % of the conditional yield strength of studied steel. Stress dependences of the initial and reversible magnetic permeabilities as well as differential magnetic permeability along the descending branch of the minor hysteresis loop, which starts in the remanent magnetization state, are non-monotonic. They have extremums at σ = 50–70 MPa. However, stress dependences of the sums of those parameters are monotonic. The relative changes reach 25 % at tensile stresses of 250 MPa which make the promise of using the sums of magnetic permeabilities as parameters for assessing the magnitude of tensile stresses.