Conclusions
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1.
Growth of diffusion layers during high-temperature nitriding of ferrite-carbide structures is accompanied by phase transitions and proceeds by means of nucleation and growth of crystals of a new phase. The character of its relation to the initial structure depends on the ratio of the rates of crystallization and the supply of nitrogen to the front of crystallization.
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2.
During the nitriding processes of redistribution of carbon and alloying elements in the steel take place which are expressed in the formation of austenite with a variable tendency toward supercooling during quenching.
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V. G. Permyakov, Yu. V. Naydich, and S. A. Rybak, Zavodskaya Laboratoriya (1955) No. 6.
A. P. Gulyaev and V. D. Zelenova, MiTOM (1960) No. 3.
V. G. Permyakov and A. V. Belotskiy, Izvestiya Vysshikh Uchebnykh Zavedenii Chernaya Metallurgiya (1958) No. 11.
V. G. Permyakov, MiOM (1956) No. 7.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 42–44, March, 1964
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Permyakov, V.G., Kaz'miruk, A.I. The formation and phase composition of the diffusion layer in high-temperature nitriding of 38KhMYuA steel. Met Sci Heat Treat 6, 163–165 (1964). https://doi.org/10.1007/BF00657718
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DOI: https://doi.org/10.1007/BF00657718