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Microstructure formation and properties of abrasion resistant cast steel

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The so-called adamitic cast steels are characterised by a high abrasion resistance. These cast steels are of a pearlitic matrix withuniformly distributed hypereutectoid cementite precipitates. Apart from hypereutectoid cementite very often transformed ledeburite alsooccurs in the microstructure of these cast steels. Such cast steels contain chromium (app. 1 %) and nickel (app. 0.5 %) as alloy additions and sometimes their silicon content is increased. The presence of molybdenum is also permissible (app. 0.4 %). The basic problem in application of these steels for structural elements constitutes their insufficient crack resistance. An improvement of mechanical properties by changes of morphology of hypereutectoid cementite and transformed ledeburite precipitates by means of the heat treatment applicationwas the aim of this study. G200CrNiMo4-3-3 cast steel was the investigated material. Changes in the morphology of hypereutectoid cementite and transformed ledeburite obtained due to the heat treatment are described in detail in the present paper. An influence of the microstructure changes on impact toughness of the investigated cast steel is presented. Investigations performed within this study will serve for the microstructure optimisation on account of functional qualities of this cast steel.
Rocznik
Strony
295--300
Opis fizyczny
Bibliogr. 27 poz., rys., tab., wykr.
Twórcy
autor
autor
  • Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Mickiewicza Al. 30, 30-059 Kraków
Bibliografia
  • [1] K. Żaba, S. Nowak, A. Kawecki, J. Krawczyk, W. Stanisławski, P. Październiak, Selection of materials for elements of frictional dampers in freight car suspensions, Ores and Non-Ferrous Metals, vol. 53, No. 1 (2008) 8-14 (in Polish).
  • [2] S.M. Dobosz, A. Chojecki, R. Skoczylas, Computer aided casting methoding of railway system, Archives of Foundry Engineering, vol. 8, No. 2 (2008) 17-20.
  • [3] J. Pacyna, T. Skrzypek, Phase transformations of under-cooled austenite of new bainitic materials for scissors crossovers, Archives of Foundry Engineering, vol. 8, No. 2 (2008) 111-114.
  • [4] J. Krawczyk, J. Pacyna, The role of transformed ledeburite in high temperature tribology on the example of adamite rolls, Proceedings of the Eleventh International Scientific Conference Contemporary Achievements in Mechanics, Manufacturing and Materials Science, Gliwice–Zakopane (2005) 535-540.
  • [5] J. Krawczyk, Effect of the microstructure on tribological phenomena occurring on the surface of a mill roll made of SA5T cast iron (GJSL-HV600–GJSL-330NiMoCr12-8-3), Archives of Foundry Engineering, vol. 8, No. 2 (2008) 170-174.
  • [6] J. Krawczyk, J. Pacyna, A. Kokosza, Fracture toughness of cast materials for mill rolls, Proceedings of the 6th International Conference for Mesomechanics, Multiscaling in Applied Science and Emerging Technology, Fundamentals and Applications in Mesomechanics, 31 May-4 June, 2004, Patras, Greece, p. 203-207.
  • [7] J. Krawczyk, Structural causes of defects in a cast iron mill roll, Archives of Foundry Engineering, vol. 8, No. 2 (2008) 93-98.
  • [8] G. Pintaude, F.G. Bernardes, M.M. Santos, A. Sinatora, E. Albertin, Mild and severe wear of steels and cast irons in sliding abrasion, Wear, vol. 267 (2009) 19-25.
  • [9] M. Pellizzari, D. Cescato, M.G. De Flora, Hot friction and wear behaviour of high speed steel and high chromium iron for rolls, Wear, vol. 267 (2009) 467-475.
  • [10] J.J. Coronado, A. Gómez, A. Sinatora, Tempering temperature effects on abrasive wear of mottled cast iron, Wear, vol. 267 (2009) 2070-2076.
  • [11] D.N. Hanlon, W.M. Raiforth, C.M. Sellars, The rolling/sliding wear response of conventionally processed and spray formed high chromium content cast iron at ambient and elevated temperature, Wear, vol. 225-229 (1999) 587-599.
  • [12] E. Rożniata, J. Pacyna, Effect of structure on mechanical properties of Cr-Ni-Mo cast steel, Archives of Materials Science and Engineering, vol. 28, No. 4 (2007) 224-230.
  • [13] E. Rożniata, J. Pacyna, Hypereutectoid cementite morphology and mechanical properties of Cr-Ni-Mo cast steel, Journal of Achievements in Materials and Manufacturing Engineering, vol. 17, No. 1 (2006) 145-148.
  • [14] D. Kopyciński, Inoculation of chromium white cast iron, Archives of Foundry Engineering, vol. 9, No. 1 (2009) 191-194.
  • [15] E. Fraś, M. Kawalec, Effect of silicon on the structure and mechanical properties of high-vanadium cast iron, Archives of Foundry Engineering, vol. 9, No. 3 (2009) 231-134.
  • [16] E. Fraś, M. Kawalec, Effect of small additions of vanadium and niobium on structure mechanical properties of nodular cast iron, Archives of Foundry Engineering, vol. 6, No. 21(1/2) (2006) 383-388 (in Polish).
  • [17] E. Guzik, Some selected problems concerning the processes of cast iron improvement, Archives of Foundry Engineering, 2001, Monograph No. 1M (in Polish).
  • [18] S. Rzadkosz, L. Staszczak, High chromium cast iron for impellers of shot blasting machines, Archives of Foundry, vol. 6, No 21(1/2) (2006) 71-78 (in Polish).
  • [19] A. Pirek, Z. Stradomski, The role of the microstructure on the fracture mechanism of cast tool steel, XXXIII School of Materials Engineering, Kraków-Ustroń (2005) 117-120 (in Polish).
  • [20] S. Stachura, T. Borek, J. Jańczyk, Investigation of alloy high carbon cast steel for mill rolls, Metallurgy and Foundry Engineering, 111 (1987) 203-214 (in Polish).
  • [21] J. Głownia, The role of segregation in fracture toughness of cast steel rolls, Metallurgy and Foundry Engineering, 111 (1987) 215-223 (in Polish).
  • [22] M. Kawalec, E. Fraś, Abrasive wear resistance of high-vanadium cast iron, Archives of Foundry Engineering, vol. 9, No. 4 (2009) 103-108.
  • [23] J. Krawczyk, E. Rożniata, J. Pacyna: The influence of hypereutectoid cementite morphology upon fracture toughness of chromium-nickel-molybdenum cast steel of ledeburite class, Journal of Materials Processing Technology, 162-163 (2005) 336-341.
  • [24] J. Krawczyk, J. Pacyna, The influence of microstructure of mottled cast iron for mill rolls on its properties, Metal 2009–18th International Conference on Metallurgy and Materials, May 19th-21st, 2009, Hradec nad Moravicy, Czech Republic, 266-272.
  • [25] E. Rożniata, J. Pacyna, Structure of chromium-nickel-molybdenum cast steel after additional heat treatment, Archives of Foundry Engineering, vol. 6, No. 21(1/2) (2006) 85-92 (in Polish).
  • [26] E. Rożniata, J. Pacyna, Effect of annealing on mechanical properties of ledeburitic cast steel, Journal of Achievements in Materials and Manufacturing Engineering, vol. 20, No. 1-2 (2007) 187-190.
  • [27] E. Rożniata, J. Pacyna, Effect of annealing on mechanical properties of G200CrNiMo4−3−3 cast steel, XXXV School of Materials Engineering, Krakow−Krynica (2007) 46-53 (in Polish).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-3ae33bbd-7f18-43ef-b823-4e0381ecfefa
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