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Structural State Evolution and Rolled Product Properties in Relation to Treatment Regime of Model Steels for Hot Stamping. 1. Hot-Rolled Product

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A model steel microalloyed with vanadium is studied in detail for features of the change in microstructure, mechanical properties, and nanosize carbonitride precipitates in relation to hot rolling parameters. It is established that grain size decreases uniformly and its stretching increases with a reduction in temperature for the end of rolling. The set of steel mechanical properties is decisively affected by the system of nanosize vanadium carbonitride precipitates, including precipitates of three types: interphase, formed during γ→α transformation, and also generated within austenite and formed within ferrite during wound coil cooling.

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This work was carried out within the scope of Subsidy Agreement No. 14.579.21.0005 of June 5, 2014; unique project identifier RFMEFI57914X0005.

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Authors and Affiliations

  1. Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet), Moscow, Russia

    A. I. Zaitsev, A. V. Koldaev, Yu. S. Gladchenkova & N. G. Shaposhnikov

  2. Chemical Faculty, Lomonosov Moscow State University, Moscow, Russia

    A. I. Zaitsev & S. F. Dunaev

Authors
  1. A. I. Zaitsev
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  2. A. V. Koldaev
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  3. Yu. S. Gladchenkova
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  4. N. G. Shaposhnikov
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  5. S. F. Dunaev
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Correspondence to A. I. Zaitsev.

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Translated from Metallurg, No. 3, pp. 54–59, March, 2016.

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Zaitsev, A.I., Koldaev, A.V., Gladchenkova, Y.S. et al. Structural State Evolution and Rolled Product Properties in Relation to Treatment Regime of Model Steels for Hot Stamping. 1. Hot-Rolled Product. Metallurgist 60, 274–280 (2016). https://doi.org/10.1007/s11015-016-0286-7

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  • DOI: https://doi.org/10.1007/s11015-016-0286-7

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