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Austempered Ductile Iron for Gears
Technical Paper
2012-36-0305
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
It is discussed the use of ADI (Austempered Ductile Iron) for gears. The gears were produced from continuous cast iron bars, heat treated for grade 3 of ASTM ADI Standard A897M-06 (UTS ≻1200 MPa), and compared to carburized steel AISI 8620 and to induction hardened steel AISI 4140. Tests on gears were made using equipment developed at UTFPR, measuring the time for pitting and spalling on the surface of the gears. The results show very good potential of using ADI for gears, replacing induction hardened steels. The results show too that the nodule size affects the life of gears, independently of the mechanical properties of the matrix. The ADI with smallest nodules show higher life for pitting formation. It is discussed additionally the mechanisms of crack propagation under the surface of the gears, for all tested materials.
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Guesser, W., Koda, F., Martinez, J., and da Silva, C., "Austempered Ductile Iron for Gears," SAE Technical Paper 2012-36-0305, 2012, https://doi.org/10.4271/2012-36-0305.Also In
References
- Aranzabal, J. Serramoglia, G. Goria, C.A. Rousière, D. Development of a mixed (ferritic-ausferritic) ductile iron for automotive suspension parts International Journal of Cast Metals Research 16 1-3 185 190 2003
- ASTM /A897M-06 Standard Specification for Austempered Ductile Iron Castings 2006
- Blackmore, P.A. Harding, R.A. Journal of Heat Treating 3 4 310 325 1984
- Brunetti, C. Efeito da preparação de corpos de prova na vida em fadiga de contato de rolamento de ferro fundido nodular austemperado Dissertação de mestrado PPGEM, Univeridade Tecnológica Federal do Paraná UTFPR 2008
- Dommarco, R C Jaureguiberry, A J Sikora, J A. Rolling contact fatigue resistance of ductile iron with different nodule counts and matrix microstructures Wear 261 172 179 2006
- Greno, G.L. Otegui, J.L. Boeri, R.E. Mechanisms of fatigue crack growth in ADI International Journal of Fatigue 21 35 43 1999
- Guedes, L.C. Guesser, W.L. Duran, P.V. Santos, S.B.A. Utilização de ferros fundidos nodulares bainíticos na fabricação de engrenagens Metalurgia ABM 42 341 237 1986
- Guesser, W. L Franco, E Lussoli, C Costa, C. E. Ferro nodular austemperado a partir da zona crítica 14° Congresso de Fundição ABIFA - CONAF São Paulo 2009
- Harding, R. A. “Establishing gear-testing at BCIRA to promote the use of austempered nodular iron in engineering and automotive applications” 1984
- Koda, F. Estudo da Fadiga de Contado em Engrenagens Cilíndricas de Dentes Retos Dissertação de mestrado PPGEM, Universidade Tecnológica Federal do Paraná 2009
- Leite, M. V. Análise dos mecanismos de desgaste por fadiga de contato Dissertação de mestrado PPGEM, Universidade Tecnológica Federal do Paraná, UTFPR 2005
- Lipson, C. Sheth, N. J. Statistical Design and Analysis of Engineering Experiments McGraw-Hill 36 44 1973
- Martinez, J. A. B. Comparação da resistência ao desgaste por fadiga de contato de engrenagens fabricadas em aço AISI 4140 e ferro fundido nodular austemperdo Dissertação de mestrado PPGEM, Universidade Tecnológica Federal do Paraná 2011