Conclusions
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1.
In cyclic bending deformation of 10G2S1 steel in the 300–500°C range with subsequent air cooling the tensile and yield strengths increase by 95–120 and 155–240 N/mm2, respectively, with a drop in the elongation of 7–8.5% and in the impact strength at −70°C of 35–55 J/cm2. In this case strengthening is caused by the prevailing influence of the processes of formation of a cellular dislocation structure and dynamic strain aging.
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2.
In deformation in the 780–840°C range the strength characteristics increase by 35–110 N/mm2 without a reduction in plasticity and impact strength, which is caused by the formation of an additional quantity of intermediate acicular structure.
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3.
For strengthening of low-alloy thick sheet steel in the warm condition by cyclic bending, roll straightening machines may be used.
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Additional information
Donetsk Scientific-Research Institute for Ferrous Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 54–56, June, 1986.
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Podgaiskii, M.S., Maksimov, A.B. & Nalivaichenko, T.M. Strengthening of 10G2S1 steel in relation to the temperature of cyclic bending deformation. Met Sci Heat Treat 28, 455–458 (1986). https://doi.org/10.1007/BF00836900
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DOI: https://doi.org/10.1007/BF00836900