Growth Law for Columnar Structure within the Copper and Copper Alloys Solidifying at a High Peclet Number

• Autorzy: Kwapisiński Piotr , Wołczyński Waldemar

Identyfikatory

DOI

10.24425/amm.2023.142437

• Języki publikacji: EN

Abstrakty

EN

The copper and copper alloys’ ingots have been subjected to structural observation in order to estimate the Peclet Number at which these ingots were solidifying. It was stated that the formation of columnar structure within the ingots occurred at a high Peclet Number, higher than the threshold value of this parameter, Pe = 500. The formulated relationships of the Growth Law correspond to a high Peclet Number due to application of the adequate development in series of the Ivantsov’s function. The Growth Law has been developed on the basis of the definition of the wavelength of perturbation which leads to the dispersion of the planar s/l interface. New definition of the index of stability connected with the behavior of solute concentration at the s/l interface has been delivered. The current definition is related to non-equilibrium solidification. The index can be easily calculated using some parameters delivered by a given Cu-X phase diagram. Physical meaning of the formulated Growth Law has also been presented.

Słowa kluczowe

EN

continuously cast copper ingots; perturbation wavelength; criterion of marginal stability

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2023
• Tom: Vol. 68, iss. 2
• Strony: 579--584
• Opis fizyczny: Bibliogr. 10 poz., fot., rys., wzory

Twórcy

autor

Kwapisiński Piotr

• KGHM Polska Miedź S.A., ul. M. Skłodowskiej-Curie 48, 59-301 Lubin, Polska

• https://orcid.org/0000-0002-3396-9489

autor

Wołczyński Waldemar

• Institute of Metallurgy and Materials Sciences PAS, Reymonta St. 25, 30-059 Kraków, Poland

• https://orcid.org/0000-0002-3974-2971

Bibliografia

• [1] W. Wołczyński, A. Ivanova, P. Kwapisiński, Procedia Manufacturing 30, 459-466 (2019). www.elsevier.com/location/procedia
• [2] W. Kurz, D.J. Fisher, Fundamentals of Solidification, Ed. Trans.Tech. Publications, 1998.
• [3] J. Szajnar, Journal of Materials Processing Technology 157-158, 761-764 (2004).
• [4] P. Kwapisiński, A. Ivanova, B. Kania, W. Wołczyński, Archives of Foundry Engineering 17 (1), 109-114 (2017).
• [5] R. Trivedi, Journal of Crystal Growth, 49, 219-232 (1980).
• [6] I. Jin, G.R. Purdy, Journal of Crystal Growth 23, 29-36 (1974).
• [7] J.S. Langer, H. Müller-Krumbhaar, Journal of Crystal Growth 42, 11-14 (1977).
• [8] W. Kurz, D.J. Fisher, Acta Metallurgica 29, 11-20 (1981).
• [9] G.P. Ivantsov, Doklady Akademii Nauk SSSR 58, 567-572 (1947).
• [10] P. Kwapisiński, Z. Lipnicki, A, Ivanova, W. Wołczyński, Archives of Foundry Engineering 17 (2), 49-54 (2017). DOI: https://doi.org/10.1515/afe-2017-0050

Uwagi

The support was provided by the National Center for Research and Development under Grant No. PBs3/a5/52/2015. The assistance of the Copper Smelter “Cedynia” in Orsk is greatly appreciated.