The laws of formation and growth of carbonitride layer in steels 40G2, 38KhMA, 40KhN2MA, and 09GSF at a temperature of 560°C are studied. Metallographic methods are used to determine its composition, location and length. Equations for computing the lengths of the carbonitride phase and of the layer due to surface cyaniding are derived.
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Notes
Here and below in the paper the values of C 1, C 2 and C 3 are given in atomic fractions.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 54 – 57, March, 2017.
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Gryzunov, V.I., Priymak, E.Y., Firsova, N.V. et al. Kinetic Aspects of Formation of Carbonitride Layer. Met Sci Heat Treat 59, 186–189 (2017). https://doi.org/10.1007/s11041-017-0126-9
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DOI: https://doi.org/10.1007/s11041-017-0126-9