It is proposed that magnetic information parameters constructed from the parameters of the full magnetic hysteresis loop of steels be used for nondestructive testing of medium-carbon alloy steels. Analytic expressions for calculating the relative error in the determination of the magnetic information parameters are derived and analyzed. The measurement errors of the constituents of the parameters and the errors associated with the mathematical computations are taken into account. It is shown that the errors in the determination of the magnetic information parameters over the potential range of variation of the magnetic properties of steels is several-fold less than the relative error of the measurement of the relaxation magnetic parameters of steels. The use of the magnetic information parameters for nondestructive testing of the hardness of 40Kh steel in the range of hardness of practical importance is considered.
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Translated from Izmeritel’naya Tekhnika, No, 8, pp. 53–57, August, 2019. Original article submitted June 5, 2019.
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Sandomirski, S.G. Application of Magnetic Information Parameters for Nondestructive Testing of the Hardness of Medium-Carbon Alloy Steels. Meas Tech 62, 722–728 (2019). https://doi.org/10.1007/s11018-019-01685-z
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DOI: https://doi.org/10.1007/s11018-019-01685-z