OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 24 No. 1 2022 Fig. 8. Effect of low temperatures and the presence of stress concentrators on the percentage reduction of area of steel: a – 12Cr18Ni10Ti [4]; b – 10Cr14NMn20; c – 10Cr14Mn14Ni4Ti a b c Taking into account the diffi cult operating conditions of low-temperature equipment materials, the work analyzes the effect of low temperatures and stress concentrators on the values of impact strength of the studied steels in the deformed state (Figure 9). Acomprehensive analysis has shown that 10Cr14NMn20 steel and 10Cr14Mn14Ni4Ti steel in a deformed state are characterized by a sharp reduction of the values of impact strength in a small temperature range. At the same time, it is important to maintain suffi ciently high values of impact strength at a test temperature of –196 °C.
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