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Influence of rolling temperature on the austenite structure and properties of low-carbon microalloyed steel

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Abstract

In laboratory conditions, the influence of the temperature interval in the finishing stage of controlled rolling on the structure of hot-deformed austenite, the final microstructure, and the properties of low-carbon microalloyed steel is studied. Experiments show that reducing that temperature interval within the range T nr-A r3 reduces the grain size in the direction transverse to rolling and increases the number of deformational twins within the hot-deformed austenite grains. The effect is to improve the grain size and uniformity of the ferrite-bainite microstructure and hence to improve the mechanical properties of the thick sheet produced.

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Authors and Affiliations

  1. OAO Vyksunskii Metallurgicheskii Zavod, Vyksa, Russia

    L. I. Efron & Yu. D. Morozov

  2. Bardin Central Research Institute of Ferrous Metallurgy, Moscow, Russia

    E. A. Goli-Oglu

Authors
  1. L. I. Efron
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  2. Yu. D. Morozov
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  3. E. A. Goli-Oglu
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Additional information

Original Russian Text © L.I. Efron, Yu.D. Morozov, E.A. Goli-Oglu, 2012, published in “Stal’,” 2012, No. 5, pp. 60–65.

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Efron, L.I., Morozov, Y.D. & Goli-Oglu, E.A. Influence of rolling temperature on the austenite structure and properties of low-carbon microalloyed steel. Steel Transl. 42, 456–461 (2012). https://doi.org/10.3103/S0967091212050038

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  • DOI: https://doi.org/10.3103/S0967091212050038

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