Abstract
The heat-resistant steel 20Kh3MVF-Sh is used for toothed gears employed in pumps of turbojet engines. In service, the working surface of the gears is subjected to intensive wear. Using gas-phase carburizing to case-harden such gears has proven to be insufficiently effective. In this work we have investigated the structure, the chemical composition, and the wear resistance of 20Kh3MVF-Sh steel after ion carbonitriding. We have obtained regression equations relating the wear resistance characteristics to the carbon and nitrogen concentration and the hardness of the diffusion layer. We have developed a combination process for ion carbonitriding which increases the wear resistance or steel 20Kh3MVF-Sh.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Kh. Makarov, M. V. Borisov, N. M. Ryzhov, et al., “Pilot facility for ion carburizing of steel parts,” Aviatsionnaya Promyshlennost', No. 4, 5–53 (1985).
A. Kh. Makarov, M. V. Borisov, N. M. Ryzhov, et al., “Technological potential of ion carbonitriding,” Aviatsionnaya Promyshlennost', No. 6, 61–64 (1985).
”Method for ion carbonitriding of steel pieces,” USSR Inventor's Certificate 1389328, IPC 23 C 8/36.
Additional information
N. É. Bauman State Technical University, Moscow. MAKB “TEMP”. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 9–13, June, 1994.
Rights and permissions
About this article
Cite this article
Rodionov, A.V., Ryzhov, N.M., Fakhurtdinov, R.S. et al. Enhancement of bending strength of heat-resistant steel by ion carbonitriding. Met Sci Heat Treat 36, 292–297 (1994). https://doi.org/10.1007/BF01401070
Issue Date:
DOI: https://doi.org/10.1007/BF01401070