Conclusions
-
1.
Carbonitriding has the maximum efficiency for impregnating an element, followed by carburizing and nitriding.
-
2.
The efficiency of carburizing and carbonitriding processes using endogas may be markedly increased as a result of regeneration and repeated use of endogas.
-
3.
The efficiency of the diffusion impregnation process for steels with nitrogen and carbon is reduced with an increase in the degree of their alloying and duration of impregnation in proportion to\(\sqrt \tau \).
Similar content being viewed by others
Literature cited
S. S. Kiparisov and Yu. V. Levinskii, Nitriding of Refractory Metals [in Russian], Metallurgiya, Moscow (1972).
E. Gebhardt and E. Frohm, Gases and Carbon in Metals [in Russian], Metallurgiya, Moscow (1980).
V. B. Raitses, Technology of Thermochemical Treatment in Machine Building Factories [in Russian], Mashinostroenie, Moscow (1965).
M. P. Leonidova, L. A. Shvartsman, and L. A. Shul't, Physiochemical Bases of the Reaction of Metals with Controlled Atmospheres [in Russian], Metallurgiya, Moscow (1980).
Yu. M. Lakhtin and Ya. D. Kogan, Nitriding of Steel [in Russian], Mashinostroenie, Moscow (1976).
Yu. M. Lakhtin, Ya. D. Kogan, and A. A. Bulgach, "Calculation of the effect of alloying elements on the solubility and diffusion of nitrogen in steel during nitriding in α and ε-phase," in: Trudy MADI, No. 174, 42–59 (1979).
Yu. M. Lakhtin, Physical Bases of the Nitriding Process [in Russian], Mashgiz, Mowcow (1948).
L. V. Beloruchev, V. V. Demkovskii, Yu. S. Kulishov, et al., Nitriding with Dilute Ammonia [in Russian], LDNTP (1966).
Yu. M. Lakhtin (ed.), Heat Treatment in Engineering (Handbook) [in Russian], Mashinostroenie, Moscow (1980).
R. P. Shubin and M. L. Grinberg, Carbonitriding of Machine Components [in Russian], Mashinostroenie, Moscow (1975).
B. Przhenosil, Carbonitriding [in Russian], Mashinostroenie, Leningrad (1969).
Additional information
Moscow Automobile Road Institute, Production Unit of the Kalinin Moscow Mechanical Factory. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 2–6, June, 1986.
Rights and permissions
About this article
Cite this article
Lakhtin, Y.M., Kogan, Y.D. & Solodkin, G.A. Effeciency of thermochemical treatment processes. Met Sci Heat Treat 28, 383–387 (1986). https://doi.org/10.1007/BF00836881
Issue Date:
DOI: https://doi.org/10.1007/BF00836881