Conclusions
-
1.
When a specimen is heated by an internal heat source, a temperature gradient from 1100 to 200°C exists in the gaseous medium at a distance h=6 mm.
-
2.
The model that we have constructed for gaseous carburizing takes into account the convective flow resulting from the presence of a temperature gradient for the case when a specimen is heated by an internal heat source.
-
3.
When the flow rate of gas is lower than 3 m/sec, convective motion accelerates the carburizing process of steel during "internal" heating. The difference in the weight gain realized by the two methods of carburizing reaches 30%. An increase in the velocity of the gas flow (at a constant temperature and for a constant time) leads to a reduction in the difference in the carburizing rate.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
Literature cited
I. N. Kidin, V. I. Andryushechkin, V. A. Volkov, and A. S. Kholin, Electric Case Hardening of Metals and Alloys [in Russian], Metallurgiya, Moscow (1978), pp. 34–38.
V. A. Arutyunov, V. I. Mitkalinnyi, and S. B. Stark, Metallurgical Heat Engineering [in Russian], Metallurgiya, Vol. 1, Moscow (1974), pp. 122–136.
A. V. Lykov, Heat and Mass Exchange (Handbook) [in Russian], Energiya, Moscow (1978), pp. 180–189.
M. S. Vigdergauz, Computations in Gas Chroamtography [in Russian], Khimiya, Moscow (1978).
Additional information
Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 13–15, March, 1989.
Rights and permissions
About this article
Cite this article
Andryushechkin, V.I., Baulin, A.V. & Slavin, L.M. Gas carburizing performed while heating with an internal heat source. Met Sci Heat Treat 31, 174–177 (1989). https://doi.org/10.1007/BF00715820
Issue Date:
DOI: https://doi.org/10.1007/BF00715820