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Effect of Heat Treatment Parameters on the Formation of ADI Microstructure with Additions of Ni, Cu, Mo

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Warianty tytułu
PL
Wpływ parametrów obróbki cieplnej na kształtowanie mikrostruktury żeliwa ADI z dodatkami Ni, Cu, Mo
Języki publikacji
EN
Abstrakty
EN
Metallographic examinations and mechanical tests were carried out on the ductile iron with additions of Ni, Cu and Mo in as-cast state and after austempering. TTT and CCT diagrams were plotted. The heat treatment was performed in six different variants. Studies included qualitative assessment of the microstructure and testing of mechanical properties such as R0,2, Rm, A, Z, HRC, KC. An analysis of the obtained results was also presented.
PL
Przeprowadzono badania metaloznawcze żeliwa sferoidalnego z dodatkami Ni, Cu i Mo w stanie lanym i po hartowaniu izotermicznym. Opracowano wykresy CTPi i CTPc. Obróbkę cieplną wykonano w sześciu różnych wariantach. Badania metaloznawcze obejmowały ocenę jakościową mikrostruktury i pomiary właściwości mechanicznych: R0,2, Rm, A, Z, HRC, KC. Dokonano analizy uzyskanych wyników
Twórcy
  • AGH University of Science and Technology, Al. A.Mickiewicza 30 30-059 Krakow, Poland
autor
  • Foundry Research Institute, 73 Zakopiańska Str., 30-418 Krakow, Poland
  • AGH University of Science and Technology, Al. A.Mickiewicza 30 30-059 Krakow, Poland
autor
  • AGH University of Science and Technology, Al. A.Mickiewicza 30 30-059 Krakow, Poland
autor
  • AGH University of Science and Technology, Al. A.Mickiewicza 30 30-059 Krakow, Poland
  • AGH University of Science and Technology, Al. A.Mickiewicza 30 30-059 Krakow, Poland
Bibliografia
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  • [3] I. Olejarczyk-Wożeńska, H. Adrian, A. Adrian, B. Mrzygłód, Parametric representation of TTT diagrams of ADI cast iron, Archives of Metallurgy and Materials 57(2), 613-617 (2012).
  • [4] I. Olejarczyk-Wożeńska, A. Adrian, H. Adrian, B. Mrzygłód, Algorithm for controling of quench hardening process of constructional steels, Archives of Metallurgy and Materials 55 (1), 171-179 (2010).
  • [5] S. Kluska-Nawarecka, E. Nawarecki, B. Sniezynski, D. Wilk-Kolodziejczyk, The recommendation system knowledge representation and reasoning procedures under uncertainty for metal casting. Metalurgija 5 (1), 263-266 (2015).
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  • [7] E. Dorazil, High strength austempered ductile cast iron, Academia Prague (1991).
  • [8] L. Jincheng, R. Elliot, The influence of cast structure on the austempering o ductile iron. Part 3. The role of nodule count on the kinetics, microstructure and mechanical properties of austempered Mn alloyed ductile iron. International Journal of Cast Metals Research 12, 189-195 (1999).
  • [9] R. Elliottt, Current status of austempered cast irons. Physical Metallurgy of Cast Iron V, France, s. 1, (1994).
  • [10] M. Grech, J. M. Young, Influence of austempering temperature on the characteristics of austempered ductile iron alloyed with Cu and Ni. AFS Transactions 98, 345 (1990).
  • [11] Hua-Qin Su, Xing-Li Guo, J. M. Schissler, Influence of nickel on kinetics of bainitic transformation of the first stage of austempered ductile iron (ADI). 5th International Symposium on the Physical Metallurgy of Cast Iron, October 1994, Nancy, France, (1994).
  • [12] T. S. Shih, Z. Z. Hwang, C. Z. Wu, Optimisation of composition and dimensions in producing austempered ductile irons. Transactions AFS, 649 (1996).
  • [13] J. F. Janowak, P.A.Morton, A guide to mechanical properties possible by austempered 1,5% Ni-0,3% Mo ductile iron. Transactions AFS 1984, 489 (1984).
  • [14] M. Bahmani, R. Elliott, N. Varahram, Austempered ductile iron: a competitive alternative for forged induction hardened steel crankshafts. International Journal of Cast Metals Research 9, 249 (1997).
  • [15] J. Tybulczuk, A. Kowalski, Characteristic of ADI with additions of 1,5% Ni and 0,8% Cu, Transactions of the Foundry Research Institute 4, 403 (1997).
  • [16] Y. J. Park, P. A. Morton, M. Gagne, R. Goller, Continuous cooling transformation and austempering behavior of Cu-Mo ductile irons, Transactions AFS, 395 (1984).
  • [17] Ritzel und Tellerrader aus zwischenstufenvergüteten Gusseisen mit Kugelgraphit mit gegossenen zahnen. Giesserei 67(8) 206 (1980).
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  • [24] G. Gumienny, Carbidic bainitic and ausferritic ductile cast iron, Archives of Metallurgy and Materials 58, (4), 1053-1058 (2013).
  • [25] G. Gumienny, T. Giętka, Continuous Cooling Transformation (CCT) Diagrams of Carbidic Nodular Cast Iron, Archives of Metallurgy and Materials 60, (2) (2015).
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Uwagi
EN
The authors with to thank the Team of Ferrous Alloys Department in the Foundry Research Institute in Cracow for preparation of the test material and the Laboratory Staff of this Institute for the implementation of metallographic studies. Financial assistance of the NCN , project No. 2013/11/N/ ST8/00326
Typ dokumentu
Bibliografia
Identyfikator YADDA
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