Microstructural hardenability diagrams of the impregnated case and possibilities of their practical use in carburizing and carbonitriding
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The proposed criteria for evaluating the quality of carburized and carbonitrided cases and also the method of determination of their interrelationship with the production parameters of chemicothermal treatment guarantee development of high quality hardened cases on machine parts.
Microstructural diagrams of hardenability of the impregnated layer may be used for evaluating its quality and selection of the type of steel and the optimum chemicothermal treatment cycles with the specified conditions of hardening of parts. Such diagrams are also useful for predicting the mechanical properties of finished parts and may be used in automated control of chemicothermal treatment production operations for tractor and truck transmission parts.
KeywordsMechanical Property Automate Control Treatment Cycle Finished Part Machine Part
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- 1.I. Ya. Arkhipov, M. S. Polotskii, A. Ya. Novikova, et al., "Increasing the strength of carburized and carbonitrided gear teeth," Metalloved Term. Obrab. Met., No. 10, 56–62 (1970).Google Scholar
- 2.B. Przhenosil, Carbonitriding [in Russian], Mashinostroenie, Moscow (1969).Google Scholar
- 3.I. S. Kozlovskii, Chemicothermal Treatment of Gears [in Russian], Mashinostroenie, Moscow (1970).Google Scholar
- 4.V. D. Kalner, S. A. Yurasov, and V. A. Tel'dekov, "The influence of case hardenability on the mechanical properties of finished parts," in: The Design, Investigation, Technology, and Economics of Automobile Production [in Russian], Nauch.-Issled. Inst. Inf. Avtomob. Promysh., Moscow (1981), pp. 167–180.Google Scholar
- 5.E. A. Shur, "The structure and contact fatigue strength of steel," Metalloved. Term. Obrab. Met., No. 8, 37–43 (1978).Google Scholar
- 6.S. S. Drozd and E. I. Tesker, "The depth of propagation of plastic deformation in indentation of a shere into a flat surface of steel plate with a carburized case," in: Proceedings of the Volgograd Polytechnic Institute [in Russian], No. 5, 28–31 (1972).Google Scholar
- 7.T. M. Hadge and M. A. Orehoski, Trans. Am. Inst. Min. Met. Eng.,267, 626–642 (1946).Google Scholar
- 8.É. Gudremon, Special Steels [in Russian], Vol. 1, Metallurgizdat, Moscow (1959).Google Scholar
- 9.V. G. Paranipe, M. Cohen, M. B. Bever, and C. F. Floe, AIME Trans.188, 261 (1950).Google Scholar
- 10.I. R. Kramer, S. Siegel, and J. G. Brook, AIME Trans.,167, 670–696 (1946).Google Scholar