Gear Wheels Surface Engineering by Deformation Hardening and Carburization

Abstract:

The purpose of research is to determine the influence of carburized layer initial structural condition on the plastic deformation hardening. Deformation hardening in combination with low temperature tempering is an important technological factor of martensite or martensite-austenite matrix management of carburized layer. The formation of favorable substructure - substructure with high resistance to local microplastic deformation - occurs in the conditions of competitive processes development. The initial structural condition of carburized layer renders the influence on those processes development degree. The initial structural conditions are determined by the termochemical treatment technology. The latter relates to: the carbon saturation of carburized layer; martensite morphology and carbon concentration in it; volume fraction of redundant carbide phase and its distribution through the carburized layer; the presence of retained austenite.

• Periodical: Materials Science Forum (Volume 870)
• Pages: 383-391
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.870.383
• Online since: September 2016
• Authors: S.A. Pakhomova*, M.V. Unchikova, R.S. Fakhurtdinov
• Keywords: Contact Fatigue Strength, Gas Carburization, Ion Carbonitriding, Ion Carburization, Plastic Deformation Hardening, Termochemical Treatment

References

[1] G. Gottshtein, Physical Foundations of Materials Science, Springer-Verlag, Berlin Heidelberg, (2004).

[2] L.V. Tarasenko, S.A. Pakhomova, M.V. Unchikova, S.A. Gerasimov, Materials Science, INFRA-M Publ., Moscow, (2012).

[3] S.A. Pakhomova, N.M. Ryzhov. Changes in the Structure of Martensite of Iron-Nickel Alloys under the Action of Thermal Shotblast Treatment, Metal Science and Heat Treatment. 43 (2001) 438-439.

[4] S.A. Pakhomova. The Influence of Technological Heredity, Created by Termochemical Treatment, on the Plastic Deformation Hardening, 11 th Congress of the IFHT. 3 (1998) 61-67.

[5] N.M. Ryzhov, A.E. Smirnov. Control of Carbon Saturation of the Diffusion Layer in Vacuum Carburizing of Heat-Resistant Steels, Metal Science and Heat Treatment. 7 (2010) 340-344.

DOI: 10.1023/b:msat.0000048845.35526.09

[6] S.A. Pakhomova, A.S. Pomelnikova, Integrated hardening of the heavily loaded gear surfaces, Contemporary Innovation Technique of the Engineering Personnel Training for the Mining and Transport Industry. 1 (2014) 184-193.

[7] S.A. Pakhomova S.A. Improvement of Surrface Hardening Technology to Heatresistance Steel, Russian Journal of Heavy Machinery. 10 (2009) 35-38.

[8] M.Y. Semenov, R.S. Fakhurtdinov, M.M. Lashnev, Evaluation of the characteristics of hardening of heat-resistant steel subjected to combined thermochemical treatment, Metal Science and Heat Treatment. 55 (2013) 345-350.

DOI: 10.1007/s11041-013-9632-6

[9] N.M. Ryzhov, R.S. Fakhurtdinov, A.E. Smirnov, L.A. Fomina, Analysis of methods of carburizing of gears from heat-resistant steels, Metal Science and Heat Treatment. 52 (2010) 260-265.

DOI: 10.1007/s11041-010-9261-2

[10] S.A. Pakhomova, Efficiency of the plastic deformation hardening, Deformation and Fracture of Materials. 1 (2007) 17-20.

[11] N. M. Ryzhov, R. S. Fakhurtdinov, A. E. Smirnov, Cyclic strength of steel 16Kh3NVFBM-Sh (VKS-5) after vacuum carburizing, Metal Science and Heat Treatment, 52 (2010) 61-66.

DOI: 10.1007/s11041-010-9230-9

[12] S.A. Pakhomova. The Deformation Hardening of carburized steel, The 1-st International Conference «Deformation and Fracture of Materials». 1 (2006) 19.

[13] S.A. Pakhomova, Structure and contact fatigue strength of carburized steel after the deformation hardening, The 3-d International Conference «Deformation and Fracture of Materials and Nanomaterials» (DFMN2009). 3 (2009) 300-302.