The structure of initially high-tempered steel 09G2S (quenched and tempered at 650°C) is studied quantitatively inside the zone of plastic strain formed by the force impact of the hammer of the impact machine under dynamic three-point bending. After the impact tests, the specimen exhibits features of plastic flow of the material and bands of adiabatic shear. Additional annealing at 600°C with a hold for from 7.5 to 24 h causes stage evolution of the structure of the bands.
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The work has been performed within the state assignment conducted by the research stuff on a permanent base (No. 9.7893.2017∕ITR).
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 64 – 71, October, 2019.
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Simonov, M.Y., Naimark, O.B., Simonov, Y.N. et al. Structural Aspects of Zones of Plastic Strain. Part III. Effect of Thermal Stability of Bands of Adiabatic Shear. Met Sci Heat Treat 61, 648–656 (2020). https://doi.org/10.1007/s11041-020-00473-9
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DOI: https://doi.org/10.1007/s11041-020-00473-9