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Effect of Ferrite Content on High-Temperature Strength of 12% Chromium Steels with a Ferritic-Martensitic Structure

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Metallurgist Aims and scope

The structure and mechanical properties of a number of experimental 12% chromium steels of the ferritic-martensitic class are studied, whose prototypes are two domestic heat-resistant steels EP-450 (12Kh12М2BFR) and EP-823 (16Kh12МVSFBR). The possibility is demonstrated of using isothermal hardening for controlling the quantitative ratio of martensite and ferrite in test steel structure, characterized by considerable austenite thermal stability. It is established that ferrite content in the original steel structure has a specific unfavorable effect on high-temperature strength.

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Authors and Affiliations

  1. National University of Science and Technology MISiS, Moscow, Russia

    M. Yu. Belomytsev & A. V. Molyarov

  2. State Science Center of the Russian Federation – Leipunskii Institute for Physics and Power Engineering (GNTs RF – FEI), Obninsk, Russia

    S. M. Obraztsov

Authors
  1. M. Yu. Belomytsev
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  2. S. M. Obraztsov
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  3. A. V. Molyarov
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Corresponding author

Correspondence to M. Yu. Belomytsev.

Additional information

Translated from Metallurg, No. 9, pp. 46–51, September, 2017.

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Belomytsev, M.Y., Obraztsov, S.M. & Molyarov, A.V. Effect of Ferrite Content on High-Temperature Strength of 12% Chromium Steels with a Ferritic-Martensitic Structure. Metallurgist 61, 758–764 (2018). https://doi.org/10.1007/s11015-018-0560-y

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  • DOI: https://doi.org/10.1007/s11015-018-0560-y

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