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Thermal stability of the microstructure of 12% chromium ferritic–martensitic steels after long-term aging at high temperatures

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Abstract

The structure of EK-181 (RUSFER-EK-181, low-activation) and ChS-139 12% Cr ferritic–martensitic steels is investigated and their mechanical properties are tested after long-term (13500 h) aging at 450 and 620°C. The microstructure of the steels exhibits a high thermal stability, which provides the retention of their initial short-term mechanical properties at test temperatures.

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Authors and Affiliations

  1. Bochvar High-Technology Research Institute of Inorganic Materials, ul. Rogova 5, Moscow, 123098, Russia

    V. M. Chernov, M. V. Leont’eva-Smirnova, E. M. Mozhanov & N. S. Nikolaeva

  2. National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409, Russia

    V. M. Chernov & M. V. Leont’eva-Smirnova

  3. Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Akademicheskii pr. 2/4, Tomsk, 634021, Russia

    A. N. Tyumentsev, N. A. Polekhina, I. Yu. Litovchenko & E. G. Astafurova

  4. Tomsk State University, pr. Lenina 36, Tomsk, 634050, Russia

    A. N. Tyumentsev & I. Yu. Litovchenko

  5. Kuznetsov Siberian Physicotechnical Institute, pl. Novosobornaya 1, Tomsk, 634050, Russia

    A. N. Tyumentsev, N. A. Polekhina & I. Yu. Litovchenko

Authors
  1. V. M. Chernov
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  2. M. V. Leont’eva-Smirnova
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  3. E. M. Mozhanov
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  4. N. S. Nikolaeva
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  5. A. N. Tyumentsev
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  6. N. A. Polekhina
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  7. I. Yu. Litovchenko
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  8. E. G. Astafurova
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Corresponding author

Correspondence to V. M. Chernov.

Additional information

Original Russian Text © V.M. Chernov, M.V. Leont’eva-Smirnova, E.M. Mozhanov, N.S. Nikolaeva, A.N. Tyumentsev, N.A. Polekhina, I.Yu. Litovchenko, E.G. Astafurova, 2016, published in Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 61, No. 2, pp. 53–58.

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Chernov, V.M., Leont’eva-Smirnova, M.V., Mozhanov, E.M. et al. Thermal stability of the microstructure of 12% chromium ferritic–martensitic steels after long-term aging at high temperatures. Tech. Phys. 61, 209–214 (2016). https://doi.org/10.1134/S1063784216020092

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  • DOI: https://doi.org/10.1134/S1063784216020092

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