Abstract
The relationship between the coercive force in low-carbon steels under plastic extension and compression and the values of deformation and actual and residual stresses are studied. This relationship is investigated for both “ slow” loading (when an equilibrium deformation is attained for each load value) and “fast” loading (when such equilibrium is not attained). It is shown that (i) a comparatively small increase in the coercive force in a loaded condition is due only to an increase in the density of dislocations in the process of plastic extension; (ii) a significant steep increase in the coercive force accompanying removal of the load from a plastically stretched specimen is fully due to residual compression stresses; (iii) the values of the coercive force under “slow” and “fast” loading are significantly different in the region of small deformations less than 2.5%; (iv) these values are close to each other in the loaded state for all deformations up to 10%; (v) a relief of the compression stress that creates plastic deformations causes a steep decrease in the coercive force that is as large as its increase following relief of plastic extension; this is explained by the emergence of a significant residual tension stress. The obtained results are of importance for the use of the method based on measuring the coercive force to test steel structures under the conditions when plastic deformations develop.
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REFERENCES
Tompson, S.M. and Tanner, B.K., The Magnetic Properties of Specially Prepared Pearlitic Steels of Varying Carbon Content as a Function of Plastic Deformation, J. Magn. Magn. Mater., 1994, vol. 132, pp. 71–88.
Ivanayagi, D., Nondestructive Magnetic Method for Measuring Residual Stresses, Khikhakai Kensa, 1974, vol. 23, no.3, pp. 147–154.
Khristenko, I.N. and Krivova, V.V., Effect of Plastic Deformations on the Coercive Force of Low-Carbon Steels, Defektoskopiya, 1984, no. 6, pp. 90–92.
Zakharov, V.A., Borovkova, M.A., Komarov, V.A., and Muzhitskii, V.F., Effect of External Stresses on the Coercive Force of Carbon Steels, Defektoskopiya, 1992, no. 1, pp. 41–46.
Nichipuruk, A.P., Gorkunov, E.S., Gavrilova, L.D., et al., Magnetic and Magnetoelastic Properties of the 30XΓCA Steel Subjected to Cold Plastic Deformation and Heat Treatment, Defektoskopiya, 1998, no. 4, pp. 55–64.
Bezlyud’ko, G.Ya., Muzhitskii, V.F., and Popov, B.E., Magnetic Inspection (by Measuring a Coercive Force) of the Stressed-Strained State and the Residual Life of Steel-Works, Zavod. Lab., 1999, vol. 65, no.9, pp. 53–57.
Mikheev, M.N. and Gorkunov, E.S., Magnitnye metody strukturnogo analiza i nerazrushayushchego kontrolya (Magnetic Methods of Structural Analysis and Nondestructive Testing), Moscow: Nauka, 1993.
Bernshtein, M.L. and Zaimovskii, V.A., Struktura i mekhanicheskie svoistva metallov (The Structure and Mechanical Properties of Metals), Moscow: Metallurgiya, 1970.
Volfart, H., The Effect of Residual Stresses, in Povedenie stali pri tsiklicheskikh nagruzkakh (Steel Behavior under Cyclic Loads), Dal’, V., Ed., Moscow: Metallurgiya, 1983.
Tikadzumi, S., Physics of Ferromagnetism. Magnetic Characteristics and Practical Applications. Translated under the title Fizika ferromagnetizma. Magnitnye kharakteristiki i prakticheskie primeneniya, Moscow: Mir, 1987.
Kuleev, V.G., Gorkunov, E.S., Mechanisms of Effect of Internal and External Stresses on the Coercive Force of Ferromagnetic Steels, Defektoskopiya, 1997, no. 11, pp. 3–18.
Feodos’ev, V.I., Soprotivlenie materialov (Resistance of Materials), Moscow: GIFML, 1963.
Malinin, N.N., Prikladnaya teoriya plastichnosti i polzuchesti (Applied Theory of Plasticity and Creep), Moscow: Mashinostroenie, 1968.
Abramov, V.V., Ostatochnye napryazheniya i deformatsii (Residual Stresses and Deformations), Moscow: Mashinostroenie, 1969.
Gorkunov, E.S., Povolotskaya, A.M., Kuleev, V.G., et al., Coercive Force of a Package of Steel Sheets with Different Degrees of Magnetic Hardness, Defektoskopiya, 2002, no. 5, pp. 32–40 [Rus. J. of Nondestructive Testing (Engl. Transl.), 2002, vol. 38, no. 5, p. 331].
Kuleev, V.G., Mikheev, M.N., Rigmant, M.B., et al., On the Problem of Testing the Magnetic State of Ferromagnetic Steels Exposed to Magnetic Fields and Elastic Stresses in Hyper-Rayleigh Region, Defektoskopiya, 1985, no. 10, pp. 33–42.
Chechernikov, V.I., Magnitnye izmereniya (Magnetic Measurements), Moscow: Mosk. Gos. Univ., 1969.
Zatsepin, N.N., Shcherbinin, V.E., On the Calculation of the Magnetostatic Field of Surface Flaws, Defektoskopiya, 1966, no. 5, pp. 50–59.
Smirnov, V.S., Teoriya obrabotki metallov davleniem (The Theory of Metal Forming), Moscow: Metallurgiya, 1973.
Dawson, R. and Moffat D. (G.), Vibratory Stress Relief; A Fundamental Study of Its Effectiveness, J. Eng. Mater. Tech., 1980, vol. 102, pp. 1–9.
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Translated from Defektoskopiya, Vol. 41, No. 5, 2005, pp. 24–38.
Original Russian Text Copyright © 2005 by Kuleev, Tsar’kova, Nichipuruk.
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Kuleev, V.G., Tsar’kova, T.P. & Nichipuruk, A.P. Specific Features of the Behavior of the Coercive Force in Low-Carbon Plastically Deformed Steels. Russ J Nondestruct Test 41, 285–295 (2005). https://doi.org/10.1007/s11181-005-0168-8
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DOI: https://doi.org/10.1007/s11181-005-0168-8