Abstract
In this work, the deposition conditions and phase composition of a carbonitrided coating on a complex alloyed hot-work 25Kh3M3NBTsA structural steel are studied using thermodynamic modeling and structural methods. It is shown that the main phases of the surface layers of carbonitrided steel are the solution of nitrogen and carbon in α-Fe, carbonitride, iron nitrides, and chromium and iron carbides. According to the results of thermodynamic analysis, carbide precipitate based on the Fe3C phase and CrN-based nitride precipitate can be formed. The possible reasons for the absence of the CrN phase in experimental data are indicated. It is shown that the wear rate of carbonitrided coatings is determined by the microhardness of the carbonitrided layer, whereas the fatigue life is related to the crack propagation rate.
Similar content being viewed by others
References
Poznyak, L.A. and Skrynchenko, S.I., Shtampovye stali (Die Steels), Moscow: Metallurgiya, 1980.
Geller, Yu.A., Instrumental’nye stali (Tool Steels), Moscow: Metallurgiya, 1975.
Artinger, I., Instrumental’nye stali i ikh termicheskaya obrabotka: spravochnik (Tool Steels and Their Thermal Treatment: A Handbook), Moscow: Metallurgiya, 1982.
Mes’kin, V.S., Osnovy legirovaniya stali (Foundations of Steel Alloying), Moscow: Metallurgiya, 1978.
Chatterjee-Fischer, R., Eysell, F.-V., Hoffmann, R., Liedtke, D., Mallener, H., Rembges, W., Schreiber, A., and Welker, G., Wärmebehandlung von Eisenwerkstoffen. Nitrieren abd Nitrocarburieren, Expert-Verlag, 1986; Moscow: Metallurgiya, 1990.
Lakhtin, Yu.M. and Kogan, Ya.D., Struktura i prochnost’ azotirovannykh splavov (Structure and Strength of Nitridied Alloys), Moscow: Metallurgiya, 1982 [in Russian].
Mei, Yang., Nitriding?fundamentals, modeling and process optimization, A Dissertation for the Degree of Doctor of Philosophy in Material Science and Engineering, Faculty of the Worcester Polytech. Inst., 2012, p. 134.
Wöhrle, T., Thermodynamics and kinetics of phase transformations in the Fe–N–C system, Dissertation Doktors der Naturwissenschaften (Dr. rer. nat.), Max-Planck-Inst. fur Metallforschung, Stuttgart, 2012.
Wöehrle, T., Leineweber, A., and Mittemeijer, E.J., Multicomponent interstitial diffusion in and thermodynamic characteristics of the interstitial solid solution e-Fe3(N, C)(1 + x): Nitriding and nitrocarburizing of pure a-iron, Metallurg. Mater. Trans. A, 2013, vol. 44, pp. 2548–2562.
Srikanth, S., Saravanan, P., Alphonsa, J., and Ravi, K., Surface modification of commercial low-carbon steel using glow discharge nitrogen plasma and its characterization, J. Mater. Eng. Perform., 2013, vol. 22, pp. 2610–2622.
Vatolin, N.A., Moiseev, G.K., and Trusov, B.G., Termodinamicheskoe modelirovanie v vysokotemperaturnykh neorganicheskikh sistemakh (Thermodynamic Simulation in High-temperature Inorganic Systems), Moscow: Metallurgiya, 1994, [in Russian].
Siminovskii, I.M., Structure and properties of nicotrated layers on microalloyed structural steels and methods of their wear-resistance, Candidate Sci. (Eng.) Dissertation, Tula, 1996.
Vlasov, V.M., Zelenko, V.K., and Malenko, P.I., Combined low-temperature chemicothermal treatment of structural alloy steels, Metal Sci. Heat Treat., 2002, vol. 44, pp. 258–262.
Malenko, P.I., Zelenko, V.K., and Levin, D.M., Temperaturnye polya i ekspluatatsionnye svoistva par treniya skol’zheniya so smazochnym materialom (Temperature Fields and Exploitation Properties of Sliding Friction Pairs with Lubricating Material), Ed. by Drozdov, Yu.N., Moscow: Mashinostroenie, 2011.
Zelenko V.K. Formation of structures of diffusion zones of nicotrated heat-resistant structural steels and criteria of estimation of their fatigue longevity, Candidate Sci. (Eng.) Dissertation, Tula, 1998.
Mirkin, L.I., Rentgenostrukturnyi kontrol’ mashinostroitel’nykh materialov: spravochnik (X-ray Structural Control of Machine Engineering Materials), Moscow: Mashinostroenie, 1979.
Izbrannye metody issledovaniya v metallovedenii (Selected Methods of Study in Metal Science) Ed. by Khunger, I, Moscow: Metallurgiya, 1985.
Goncharov, O.Yu., Thermodynamic assessment of high-temperature oxidation of Fe–Cr alloys in air, Inorg. Mater., 2004, vol. 40, pp. 1295–1300.
Glyshko, V.P., Gurvich, L.V., Veits, I.V., Medvedev, V.A., Khachkuruzov, G.A., Yungman, V.S., Bergman, G.A., Baibuz, V.F., and Iorish, V.S., Termodinamicheskie svoistva individual’nykh veshchestv: spravochnoe izdanie: v 4 t. (Thermodynamic Properties of Individual Substances. A Handbook in 4 vol.), Ed. by Glushko, V.P., Moscow: Nauka, 1978.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © V.I. Ladyanov, O.Yu. Goncharov, P.I. Malenko, A.Yu. Leonov, K.D. Relmasira, 2016, published in Materialovedenie, 2016, No. 3, pp. 16–23.
Rights and permissions
About this article
Cite this article
Ladyanov, V.I., Goncharov, O.Y., Malenko, P.I. et al. Influence of manufacturing conditions of carbonitriding on formation of surface layers and protective properties of hot-work structural steel. Inorg. Mater. Appl. Res. 7, 610–617 (2016). https://doi.org/10.1134/S2075113316040171
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S2075113316040171