Grain size reduction in the 713C nickel superalloy as a result of heat treatment

• Autorzy: Lachowicz M. B. , Faryna M. , Podrez-Radziszewska M.
• Języki publikacji: EN

Abstrakty

EN

The paper presents metallographic test results for the 713C nickel superalloy after heat treatment and crystallographic orientation analysis performed with the EBSD method. The 713C alloy was subjected to annealing in the temperature of 950 ºC for 30 hours followed by aircooling. As a result of the applied heat treatment the local grain size reduction in the alloy was observed. It has been found that in the primary grains the new subgrains of different crystallographic orientation are created. Between the new grains and the primary grains the boundaries of high angle appear. Orientation change in the micro-areas is closely related to the carbides rebuilding and volume diffusion of elements dissolved in the γ - γ’ alloy matrix and the (NbTi)C carbides.

Słowa kluczowe

EN

heat treatment; metallographic test; superalloy 713C; Ni3Al; NbC; EBSD method

PL

obróbka cieplna; badanie metalograficzne; nadstop 713C; Ni3Al; NbC; metoda EBSD

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 2 spec.
• Strony: 143--148
• Opis fizyczny: Bibliogr. 18 poz., rys., wykr.

Twórcy

autor

Lachowicz M. B.

• Wroclaw University of Technology, Institute of Materials Science and Applied Mechanics, Smoluchowskiego 25, 50-370 Wroclaw, Poland

autor

Faryna M.

• Institute of Metallurgy and Materials Science Polish Academy of Science Cracow, Poland

autor

Podrez-Radziszewska M.

• Wroclaw University of Technology, Institute of Materials Science and Applied Mechanics, Smoluchowskiego 25, 50-370 Wroclaw, Poland

Bibliografia

• [1] A. Somoza, G. Santos, A. Ges, R. Versaci, F. Plazaola, Agehardening and precipitation phenomena in the Inconel 713C superalloy studied by means of positron lifetime spectroscopy, Phys. Stat. Sol. 174, (1999) 189-198.
• [2] B. Mikułowski; Heat-resisting and creep-resisting alloys – superalloys; AGH, Kraków, 1997 (in Polish).
• [3] D Danciu, B. Dubiel, H.J Penkalla, F. Schubert, A. Czyrska-Filemonowicz, The microstructure of single crystal nickelbase superalloys for advanced industrial gas turbine components, Inżynieria Materiałowa 4 (2001) 274-277.
• [4] C.N. Panagopoulos, K.I. Giannakopoulos, V. Saltas, Wear behavior of nickel superalloy, CMSX-186, Materials Letters 57 (2003) 4611-4616.
• [5] F. Zupanič, T. Bončina, A. Križman, F.D. Tichelaar, Structure of continuously cast Ni-based superalloy Inconel 713C, J Alloys Compo 329, (2001) 290-297.
• [6] C.N. Wei, H.Y. Bor, C.Y. Ma, T.S. Lee, A study of IN-713LC superalloy grain refinement effects on microstructure and tensile properties, Materials Chemistry and Physics 80 (2003) 89-93.
• [7] M. Lachowicz, W. Dudziński, K. Haimann, M. Podrez-Radziszewska, Microstructure transformations and cracking in the matrix of γ-γ’ superalloy Inconel 713C melted with electron beam, Mat Sci Eng A 479 (2008) 269-276.
• [8] M. Lachowicz, W. Dudziński, M. Podrez-Radziszewska, TEM observation of the heat-affected zone in electron beam welded superalloy Inconel 713C, Mater Charact 59 (2008) 560-566.
• [9] M. Lachowicz, W. Dudziński, Non-equilibrium decomposition of MC carbides in superalloy Inconel 713C melted with welding techniques, Archiv Metall Mater, vol.55, No 1 (2010) 305-315.
• [10] F. Bińczyk, J. Śleziona, Effect of modification on the mechanical properties of In-713C alloy. Arch of Found Eng 1 vol 10 (2010) 195-198.
• [11] F. Bińczyk, J. Śleziona, Macro- and microhardness of In-713C nickel superalloy constituents, Arch of Found Eng 4 vol 9 (2009) 9-12.
• [12] F. Bińczyk, J. Śleziona, T. Mikuszewski, Effect of repeated remelting on the chemical composition and structure of nickel alloys, Arch of Found Eng 1 vol 10 (2010) 189-194.
• [13] Lachowicz Maciej. Microstructural changes in padding welds made from the 713C alloy after heat treatment. Arch of Found Eng 3 vol 10 (2010).
• [14] M. Faryna, Dyfrakcja elektronów wstecznie rozproszonych – kilka uwag praktycznych, Inżynieria Materiałowa 1 (2009) 5-11 (in Polish).
• [15] M. Faryna, Dyfrakcja elektronów wstecznie rozproszonych – kilka uwag teoretycznych, Inżynieria Materiałowa 4 (2009) (in Polish).
• [16] F. Bińczyk, J. Śleziona, R. Przeliorz, Calorimetric examination of mixtures for modification of nickel and cobalt superalloys, Arch of Found Eng 2 vol 9 (2009) 97-100.
• [17] F. Bińczyk, J. Śleziona, Phase transformations and microstructure of In-713C nickel superalloy, Arch of Found Eng 2 vol 9 (2009) 109-112.
• [18] F. Bińczyk, J. Śleziona, J. Cwajna, S. Roskosz, ATD and DSC analyses of nickel superalloys, Arch of Found Eng 3vol 8 (2008) 5-8.