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Structural and phase transformations in high-nitrogen austenitic steel 05Kh20AG10N3MF during thermal action

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Abstract

The structural and phase transformations in high-nitrogen austenitic steel 05Kh20AG10N3MF under various thermal actions are studied. The transformations are shown to occur only in the Fe-Cr diffusion couple, and they resemble the phase transformations in an Fe-20% Cr binary alloy. At 1200°C, hightemperature phase separation is detected; at 550°C or below, low-temperature separation is detected; and at 700 and 800°C, ordering with the formation of a Laves phase is observed. The ordering-low-temperature separation phase transition in the steel differs substantially from that occurring in Fe-Cr binary alloys.

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Authors and Affiliations

  1. Physicotechnical Institute, Ural Division, Russian Academy of Sciences, ul. Kirova 132, Izhevsk, 426000, Russia

    Yu. I. Ustinovshchikov

  2. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskii pr. 49, Moscow, 119991, Russia

    V. M. Blinov

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  1. Yu. I. Ustinovshchikov
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  2. V. M. Blinov
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Correspondence to Yu. I. Ustinovshchikov.

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Original Russian Text © Yu.I. Ustinovshchikov, V.M. Blinov, 2012, published in Metally, 2012, No. 1, pp. 72–79.

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Ustinovshchikov, Y.I., Blinov, V.M. Structural and phase transformations in high-nitrogen austenitic steel 05Kh20AG10N3MF during thermal action. Russ. Metall. 2012, 58–64 (2012). https://doi.org/10.1134/S0036029512010156

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  • DOI: https://doi.org/10.1134/S0036029512010156

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