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Kinetics of Austenitic Nitriding and Properties of Ni – Co – Cr – W – Ti Alloy

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Metal Science and Heat Treatment Aims and scope

The kinetics of high-temperature nitriding and changes in the structure and properties of heat-resistant Ni – Co – Cr – W – Ti nickel alloy VZh171 depending on its duration were studied. Short-term pulling and long-term strength tests were carried out. An analysis of the microstructure of a nitrided case is presented along with a mathematical description of the process. Recommendations are given for determining the optimal nitriding conditions of the VZh171 alloy in order to achieve the highest short-term and long-term strength. The established dependencies allow the nitriding time during the course of manufacturing items of various thicknesses from the VZh171 alloy to be determined.

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Authors and Affiliations

  1. Kurchatov Institute Research Center – VIAM, Moscow, Russia

    M. V. Akhmedzyanov, S. V. Ovsepyan, B. S. Lomberg & O. I. Rastorgueva

  2. NITU “MISiS”, Moscow, Russia

    A. O. Rodin

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  1. M. V. Akhmedzyanov
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  2. S. V. Ovsepyan
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  3. A. O. Rodin
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  4. B. S. Lomberg
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  5. O. I. Rastorgueva
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 45 – 49, April, 2022.

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Akhmedzyanov, M.V., Ovsepyan, S.V., Rodin, A.O. et al. Kinetics of Austenitic Nitriding and Properties of Ni – Co – Cr – W – Ti Alloy. Met Sci Heat Treat 64, 231–235 (2022). https://doi.org/10.1007/s11041-022-00790-1

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  • DOI: https://doi.org/10.1007/s11041-022-00790-1

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