Microstructure and chemical composition of Inconel 625 and 686 weld overlays deposited by CMT on 16Mo3 steel
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Abstract
The paper presents results of the investigation of the microstructure, chemical composition and mechanical properties of Inconel 625 and 686 (NiCr22Mo9Nb and NiCr21Mo16W) weld overlays deposited on 16Mo3 steel. The weld overlays were made by Cold Metal Transfer (CMT) technique. Investigation were carried out using light microscopy (LM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The samples were subjected to quantitative and qualitative chemical composition analysis with use of EDS. An evaluation of microsegregation of alloy elements during solidi cation of the weld overlay was performed. The investigation was supplemented by the hardness meas- urements (Vickers method).
in polish
Mikrostruktura i skład chemiczny powłok ze stopów Inconel 625 i 686 napawanych metodą CMT na stali 16Mo3
W artykule zaprezentowano wyniki badań mikrostruktury, składu chemicznego i właściwości mechanicznych napoin ze stopów Inconel 625 i 686 (NiCr22Mo9Nb i NiCr21Mo16W) nanoszonych na rury ze stali 16Mo3. Napoiny wykonano metodą Cold Metal Transfer (CMT). Badania przeprowadzono z wykorzystaniem mikroskopii świetlnej (LM), skaningowej (SEM) i transmisyjnej (TEM). Próbki poddano jakościowej i ilościowej analizie składu chemicznego techniką EDS. Dokonano oceny mikrosegregacji pierwiastków stopowych następującej podczas krzepnięcia napoiny. Dodatkowo wykonano pomiary twardości metodą Vickersa.
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References
J. N. DuPont, J. C. Lippold, S. D. Kiser: Welding metallurgy and weldability of nickel-base alloys, John Villey & Sons, New Jersey 2009.
B. Mikułowski: Stopy żaroodporne i żarowytrzymałe. Wyd. AGH, Kraków 1997.
J. Kusiński, M. Blicharski, Ł. Cieniek, S. Dymek, M. Rozmus-Górnikowska, M. Solecka, K. Faryj: Struktura i właściwości powłok ze stopów Inconel 625 i 686 napawanych metodą CMT na rury i ściany szczelne kotłów energetycznych, Inżynieria Materiałowa 6 (208), 2015, s. 363-367.
E. M. Zahrani, A. M. Alfantazi: Hot corrosion of Inconel 625 overlay weld cladding in smelting off-gas environment, Metallurgical and Materials Transactions 44A, 2013, pp. 4671-4699.
C. G. Pickin, S. W. Williams, M. Lunt: Characterisation of the cold metal transfer (CMT) process and its application for low dilution cladding, Journal of Materials Processing Technology 211, 2011, pp. 496-502.
J. Bruckner: Metoda CMT rewolucja w technologii spawania, Przegląd Spawalnictwa 7-8, 2009, s. 24-28.
M. Rozmus-Górnikowska, M. Blicharski, J. Kusiński, L. Kusiński, M. Marszycki: In uence of boiler pipe cladding techniques on their microstructure and properties, Archives of metallurgy and materials, 4 (58), 2013, pp. 1093-1096.
J. Adamiec: High temperature corrosion of power boiler components cladded with nickel alloys, Materials characterization 10 (60), 2009, pp. 1093-1099.
P. Petrzak, K. Kowalski, M. Blicharski: Analysis of Phase Transformations in Inconel 625 Alloy during Annealing, Acta Physica Polonica A 4 (130), 2016, pp. 1041-1044.
J.N. DuPont: Solidi cation of an Alloy 625 Weld Overlay, Metallurgical and Materials Transactions A, 27A, 1996, pp. 3612-3620.
V. Shankar, K. Bhanu Sankara Rao, S.L. Mannan: Microstructure and mechanical properties of Inconel 625 superalloy, Journal of Nuclear Materials 2-3 (288), 2001, pp. 222-232.
S.W. Banovic, J.N. DuPont, A.R. Marder: Dilution and microsegregation in dissimilar metal weld between upper austenitic stainless and nickel base alloys, Science and Technology of Welding and Joining 7 (6), 2002, pp. 374-383.
H.M. Tawancy, N.M. Allam: Effect of NiaNb precipitation on the corrosion resistance of Inconel alloy 625, Metrology, Journal of Materials science letters 9, 1990, pp. 343-347.
M. Solecka, P. Petrzak, A. Radziszewska: The Microstructure of Weld Overlay Ni-Base Alloy Deposited on Carbon Steel by CMT Method, Solid State Phenomena 231, 2015, pp. 119-124.
C.C. Silva, H.C. de Miranda, M.F. Motta, J.P. Farias, C.R.M. Afonso, A.J. Ramirez: New insight on the solidi cation path of an alloy 625 weld overlay, Journal of Materials Research and Technology 3 (2), 2013, pp.228-237.
M. Rozmus-Górnikowska, M. Blicharski, J. Kusiński: In uence of weld overlaying methods on microstructure and chemical composition of Inconel 625 boiler pipe coatings, Kovove Materialy, 3 (52), 2014, pp. 141-147.
M. Rozmus-Górnikowska, M. Blicharski: Microsegregation and Precipitates in Inconel 625 Arc Weld Overlay Coatings on Boiler Pipes, Archives of metallurgy and materials, 4 (60), 2015, pp. 2599-2605.
C.C. Silva, C.R.M. Afonso, A.J. Ramirez, M.F. Motta, H.C. de Miranda, J.P. Farias: Assessment of microstructure of alloy Inconel 686 dissimilar weld claddings, Journal of Alloys and Compounds 684, 2016, pp. 628-642.