Conclusions
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1.
The diffusion layer on die steels after chrome-vanadium-nitriding contains type MN, M2(N, C), and M7C3 phases and nitrogen ferrite.
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2.
Nitriding of chromized and chrome-vanadized die steels leads to a significant increase in their scale and wear resistances.
Literature cited
V. D. Yakhnina and E. P. Turkovskaya, "The influence of carbon on the structure of the nitrided case of type Kh13 steels," Metalloved. Term. Obrab. Met., No. 2, 26–28 (1971).
N. Kh. Sokolova, M. G. Karpman, and S. A. Yurasov, "Diffusion chromizing and chrome-vanadium-nitriding of die steels," in: The High Temperature Strength and Heat Resistance of Metallic Materials [in Russian], Nauka, Moscow (1976), pp. 227–230.
P. Kofstad, High Temperature Oxidation of Metals [Russian translation], Mir, Moscow (1969), p. 392.
Additional information
I. A. Likhachev Moscow Automobile Plant, Production Union. Moscow Aviation Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 39–41, July, 1984.
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Karpman, M.G., Sokolova, N.K. & Nabutovskii, L.S. Structure and properties of the diffusion layer of die steels after chrome−vanadium−nitriding. Met Sci Heat Treat 26, 531–533 (1984). https://doi.org/10.1007/BF00706712
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DOI: https://doi.org/10.1007/BF00706712