The nature of separations arising in hot-rolled plates from high-toughness steels of the new generation like 05G2B and of cleavages arising in traditional building steels of type 09G2S is studied. Like and unlike features of separations and cleavages are determined. The concept of “critical stress \( {\upsigma}_{\mathrm{b}}^{\mathrm{cr}} \)” describing the strength of the interlayer boundaries responsible for formation of layered cracks is used to analyze various factors responsible for the susceptibility of rolled plates to layered fracture.
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The work has been performed with the help of the equipment of the Laboratory for Structural Methods of Analysis and Properties of Materials and Nanomaterials of the Collective Use Center of the Ural Federal University within the MOiN Project (State Assignment No. 11.1465.2014/K) and with assistance of the Program for Support of the Leading Universities of the Russian Federation No. 211 of the RF Government No. 02.A03.21.0006 aimed at raising their competitiveness.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 11, pp. 61 – 66, November, 2017.
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Farber, V.M., Arabey, A.B., Khotinov, V.A. et al. Metallurgical Aspects of Layered Cracks in Hot-Rolled Plates. Met Sci Heat Treat 59, 735–740 (2018). https://doi.org/10.1007/s11041-018-0219-0
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DOI: https://doi.org/10.1007/s11041-018-0219-0