Analysis of the magnetoplasticity of steel by constructing the absorption spectrum of mechanical energy at magnetic resonance

Abstract

The tensile test of steels St3 (GOST 380 − 94) and 40X (GOST 4543 − 2016) in an external constant magnetic eld with an induction of 1,2 T was performed. Deformation energy absorption is a manifestation of the magnetoplastic effect. The similarity of the action of a magnetic eld in tensile testing of samples and in the study of classical magnetic resonance is described. A new method for analyzing the magnetoplasticity of bulk samples by analogy with the construction of the energy absorption spectrum at magnetic resonance has been applied. The energy absorption spectrum is plotted in the coordinates of the metal ow stress -dislocation density. The characteristics of the spectrum line are determined: its depth as the value of the absolute decrease in the metal ow stress, as well as its width according to the FWHM (Full With at Half Maximum) value.

Magnetic Fields and Equipment for Studying the Magnetoplasticity of Metals

“…The majority of positive test results were obtained for the case of perpendicular directions of the magnetic field and deformation of the samples. This is due to the resonance nature of the magnetoplastic effect [48]- [49]. At the same time, the equipment has a more complex design, containing electromagnetic coils with cores, versus a relatively simple hollow electromagnetic coil (Fig.…”