Assessment of the effect of the steels structure dispersion on its magnetic and mechanical properties

OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 23 No. 4 2021 The magnitude of internal stresses was determined according to the method [26]. It is made by comparing the data obtained on the samples under study with the data of the reference sample, which was an annealed one. The results are shown in Figure 5 [25]. A general-purpose automatic X-ray diffractometer DRON-7 was used to take X-ray diffraction patterns. Stress-strain diagrams were obtained with the help of an IR-50 tensile testing machine. During the analysis, the data on the magnitude of the ultimate strength of the investigated materials subjected to different heat treatment were speci fi ed (Figure 6). The magnitude of coercive force was determined by the KRM-C-K2M structurescope (Figure 7). It steadily decreases with increasing tempering temperature. This is due to the changes in the structural and phase composition of steels. It is noted in [27] that changes in the coercive force are associated with the Fig. 5. Dependence of the change in the magnitude of internal stresses on the tempering temperature of structural steels Fig. 6. Dependence of the change in the value of the ultimate strength on the tempering temperature of structural steels