PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Physico-chemical properties of the ESR slags system CaF2-Al2O3-(MgO, TiO2)

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Purpose: The main task of this work was the developing of new compositions of the ESR slag that would keep the required amount of easily oxidizable elements in the superalloys and have the favourable physicochemical properties. Design/methodology/approach: Thermo-dynamic modeling was applied to estimate of oxidation effect of the slags on the Inconel 718 superalloy. Slag properties (viscosity, electrical conductivity and melting points) were measured by standard methodics. Findings: The effect of slags chemistry on the preservation of the active elements (aluminium, titanium) content in the superalloy while ESR remelting was studied. Physical properties of the several compositions of the slag are prospective for ESR of alloys with high content of active elements were measured. Research limitations/implications: The results of this work allowing development of a new compositions of the slags for ESR of the specific grades of the steel and alloys and making selection of the most effective ones. Practical implications: The obtained data make it possible to successfully select a slag for the ESR processing of the specific grades of steel and alloys in order to achieve the maximum process efficiency and the quality of the ready ingots. Originality/value: The integrated approach for the investigation of slag properties using developed thermo-dynamic model of the ESR process in the protective atmosphere gives us a deep understanding of the slag effect while melting and a resulting content of easy easily oxidizable elements in the superalloy Inconel 718.
Rocznik
Strony
64--72
Opis fizyczny
Bibliogr. 24 poz., rys., tab.
Twórcy
  • The E.O.Paton Electric Welding Institute, 11 Kazimira Malevicha str., Kyiv 03150, Ukraine
  • PC ELMET-ROLL, Kyiv 03150, Ukraine
autor
  • The E.O.Paton Electric Welding Institute, 11 Kazimira Malevicha str., Kyiv 03150, Ukraine
  • The E.O.Paton Electric Welding Institute, 11 Kazimira Malevicha str., Kyiv 03150, Ukraine
autor
  • The E.O.Paton Electric Welding Institute, 11 Kazimira Malevicha str., Kyiv 03150, Ukraine
Bibliografia
  • [1] L. Medovar, Z.H. Zhang, G. Stovpchenko, L. Lisova, Slag in the process of ESR: executive part and urgent tasks, Proceedings of the 9th International Conference on Molten Slags, Fluxes and Salts “MOLTEN12”, 2012, Beijing, China.
  • [2] B.I. Medovar et al., Metallurgy of the electroslag remelting process, Naukova Dumka, Kiev, 1986, 246 (in Russian).
  • [3] B.I. Medovar, V.L. Shevcov, V.M. Martyn et al., Electroslag crucible melting and metal casting, under the B.E. Paton - Naukova Dumka, Kiev, 1988, 216 (in Russian).
  • [4] Yu. V. Latash, B.I. Medovar, Electroslag remelting, M.: Metallurgy, 1970, 240p (in Russian).
  • [5] Wacker Group: Electroflux – The Success Factor In Electroslag Remelting (ESR), https://www.wacker.com/cms/media/publications/downloads/6321_EN.pdf, (date of request 15.05.2016).
  • [6] A. Mitchell, Slag Functions in the ESR Process, Proceedings of the 2005 International Symposium on Liquid Metal Processing and Casting “LMPC 2005”, 195-200.
  • [7] G. Patejski, The use of a fluorine-free slag at an industrial ESR plant, Fift Edition, Naukova Dumka, Kiev, 1979, 111-115 (in Russian).
  • [8] K. Wróblewski, J. Fields, J. Fraley, R. Werner, S. Rudoler, Quick determination of total fluoride in electroslag refining fluxes, TMS (The Minerals, Metals & Materials Society), 2009, 303-307.
  • [9] W. Chiho X. Chunhua, Electrical conductivity of molten slags of CaF2 + Al2O3 and CaF2 + Al2O3 + CaO systems for ESR, ISIJ International 33/2 (1993) 239-244.
  • [10] S. Radwitz, J. Morscheiser, B. Friedrich, The Influence of selected Slag Properties and Process Variables on the Solidification Structure during ESR, Proceedings of the 1st International Conference on Ingot Casting, Rolling and Forging “ICRF2012”, 2012, Aachen, Germany.
  • [11] M.M. Kluev, S.E. Volkov, Electroslag remelting, M.: Metallurgy, 1984, 208 (in Russian).
  • [12] Y. Zhang, W. Chen, Y. Yang, A. Mclean, Improved slags for ESR process ingot high-carbon chromium bearing steel, ISIJ International 57/2 (2017) 322-328.
  • [13] F. Shahbazian, Du Sichen, S. Seetharaman, The effect of addition of Al2O3 on the viscosity of CaO- “FeO”- SiO2-CaF2 slags, ISIJ International 42/2 (2002) 155-162.
  • [14] W.E. Duckworth, G. Hoyle, Electro-slag refining, British Iron and Steel, 1969, 192.
  • [15] A. Scheriau. H. Holzgruber, Developments and Operational Experiences of Three Most Modern ESR-furnaces, Proceedings of the 2005 International Symposium on Liquid Metal Processing and Casting “LMPC 2005”.
  • [16] Z. Jiang, X. Chen, Y Dong, F. Liu, X. Geng, Control of steel cleanliness in electroslag remelting process, Proceedings of the International Conference Clean Steel, 2015.
  • [17] L.Z. Chang, X.F. Shi, J.Q. Cong, Study on mechanism of oxygen increase and counter measure to control oxygen content during electroslag remelting process, Ironmaking and Steelmaking 41/3 (2014) 182-186.
  • [18] M.J. Donachie, S.J. Donachie, Superalloys: A Technical Guide, ASM International, 2002, 439.
  • [19] C.-Y. Chenat et al., Composition Variation in Incoloy 800H Alloy Ingot during ESR Process, China: Steel Technical Report 26 (2013) 7-12.
  • [20] L. Gao, J. Fu, C.X. Chen, Recent Advances In Understanding Electroslag Remelting Metallurgy of Superalloys, Superalloys, 1980, 99-117.
  • [21] H. Halfa, M. Eissa, A. Fathy, Electroslag Remelted Ultra-High Strength High Ductility Martensitic Steel, Proceedings of the Conference Metal, 2013, Brno, Czech Republic.
  • [22] V.N. Kolisnyk, S.A. Shono, V.R. Saginov, Patent number 667867 USSR, G 01 N 11/14, Rotational Viscometer, No 2564858/18-25; statement: 04.01.78; published: 15.06.79, Bulletin No 22.
  • [23] V.N. Kolisnyk, S.V. Usikov, S.A. Shono, Patent number 957081 USSR, G 01 N 27/02, Device for measuring the electrical conductivity of molten slag, No 2961082/18-25; statement: 11.07.80; published: 07.09.82, Bulletin No 33.
  • [24] G. Stovpchenko, L. Modovar, Ia. Gusiev, L. Lisova, Novel physicochemical model of the electroslag remelting process in protective gases in application to manufacturing of a large ingot of superlloys, , Proceedings of the International Symposium Liquid Metal Processing & Casting “LMPC2015”, 2015, Leoben, Austria, 219-224.
Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-92857da4-2dc7-4a6b-b652-6db824191bb5
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.