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Low-Temperature Carbide Transformation in Pearlite of Medium-Carbon Steels

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Abstract

Metallographic studies of annealed medium-carbon steels (45, 40Kh, and 35KhGSA) showed that there is low-temperature peritectoid carbide transformation of pearlite of these steels, in which solid solutions of ferrite and cementite form solid solution with a broad homogeneity range on the basis of ε-carbide Fe2C. It was suggested to plot the horizontal line of peritectoid transformation at the temperature of 382°C and the horizontal line of peritectoid transformation of cementite at 1650°C on the Fe–C diagram of state.

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Authors and Affiliations

  1. Bryansk State Technical University, Bryansk, Russia

    S. V. Davydov

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  1. S. V. Davydov
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Correspondence to S. V. Davydov.

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Translated by A. Muravev

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Davydov, S.V. Low-Temperature Carbide Transformation in Pearlite of Medium-Carbon Steels. Steel Transl. 50, 639–647 (2020). https://doi.org/10.3103/S0967091220090041

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  • DOI: https://doi.org/10.3103/S0967091220090041

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