Cellular automata for simulation of dendritic growth with surface active refractory inoculants

• Autorzy: Yermolenko D. Yu. , Holovko V. V. , Stepanuyk S. M.

Identyfikatory

DOI

10.5604/01.3001.0012.6151

• Języki publikacji: EN

Abstrakty

EN

Purpose: During weld metal structure formation the possibility of impact on its mechanical properties are much more limited in comparison with metallurgy and technology of steel production. Adding of the inoculants to the welding pool is one of the promising methods of influencing the structure and mechanical properties of the weld metal. Design/methodology/approach: Cellular automata (CA) with additions of finite difference method (FDM) is one of the best ways to simulate dendritic growth process with the surfaceactive inoculants. It`s easy to add new rules of interaction between the inoculants and dendrite surface to the cellular automata model. Findings: It was found that average distance between primary dendrites axis decrease with increase of the inoculants wetting angle by melt iron. Obtained results were confirmed experimentally on weld metal samples that were obtained by the welding of HSLA steels with the surface-active inoculants. Research limitations/implications: The inoculants with size that comparable with cells size of the model (≈0.4 microns) were distributed evenly in computational area. Practical implications: Adding of surface-active inoculants to the melt metal improve structure and mechanical properties of weld metal. Different refractory particles (TiC, TiN, SiC, TiO2, Al2O3 and ZrO2) can be used. Originality/value: Refractory inoculants adding to the melt metal are wide used in metallurgy as crystallization centers and heat absorbers. Inoculants that were added to the welding pool of high-strength low-alloyed (HSLA) steel welds could also influence on crystallization processes of weld metal as surface active particles. In the contact point between the dendrite surface and the surface-active inoculant, a surface energy is change depending of the inoculant surface properties. Different refractory particles (TiC, TiN, SiC, TiO2, Al2O3 and ZrO2) were used.

Słowa kluczowe

EN

solidification; dendritic growth; cellular automata; simulation; inoculants

PL

krzepnięcie; wzrost dendrytu; automat komórkowy; symulacja; modyfikatory

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2018
• Tom: Vol. 88, nr 2
• Strony: 49--54
• Opis fizyczny: Bibliogr. 12 poz., rys., wykr.

Twórcy

autor

Yermolenko D. Yu.

• The E.O. Paton Electric Welding Institute, 11 Kazimira Malevicha str., Kyiv 03150, Ukraine

autor

Holovko V. V.

• The E.O. Paton Electric Welding Institute, 11 Kazimira Malevicha str., Kyiv 03150, Ukraine

autor

Stepanuyk S. M.

• The E.O. Paton Electric Welding Institute, 11 Kazimira Malevicha str., Kyiv 03150, Ukraine

Bibliografia

• [1] J. Sandeep, R. Chhibber, N.P. Mehta, Issues in welding or HSLA steels, Advanced Materials Research 365 (2012) 44-49.
• [2] V.V. Golovko, I.K. Pokhodnya, Effect of non-metallic inclusions on formation of structure of the weld metal in high-strength low-alloy steels, The Paton Welding Journal 6 (2013) 2-10.
• [3] D.Yu. Ermolenko, V.V. Golovko, Numerical modeling and prediction of weld microstructure in high-strength steel welding (Review), The Paton Welding Journal 3 (2014) 2-10.
• [4] W.W. Mullin, R.F. Sekerka, Stabllity of the planar interface during crystallization or a dilute binnry alloy, Journal of Applied Physics 35 (1964) 444-459.
• [5] W. Kurz, D.J. Fisher, Fundamentals of solidification. Transact. Tech. Publications Ltd., 1992.
• [6] V.V. Golovko, S.N. Stepaniuk, D.Yu. Ermolenko, Effect of titanium-containing inoculants on structure and properties of weld metal of high-strength low-alloy steels, The Paton Welding Journal 2 (2015) 14-18.
• [7] P.K. Galenko, M.D. Krivilev, Isothermal growth of crystals in undercooled binary alloys, Matematicheskoe Modelirovanie 12/11 (2000) 17-37.
• [8] P. Galenko, D. Danilov, Local non-equilibrium effect on rapid dendritic growth in binary alloy melt, Physics Letters A 235/3 (1997) 271-280.
• [9] D.Yu. Ermolenko, A.V. Ignatenko, V.V. Golovko, Direct numerical modeling of formation of weld metal dendrite structure with disperse refractory inoculants, The Paton Welding Journal 12 (2016) 13-20.
• [10] A.D Panasyuk, V.S. Fomenko, G.G. Glebova, Resistance of non-metallic materials in melts, Naukova Dumka, Kyiv, 1986.
• [11] S.I. Popel, Theory of metallurgical processes, VLNITI, Moscow, 1971.
• [12] V.V. Golovko, S.N. Stepanyk, D.Yu. Ermoenko, Technology of welding of high-strength low-alloy steels by introduction of titanium-containing inoculants, in: A.G. Naumovets. Nanodimensional Systems and Nanomaterials: Research in Ukraine, Monography, Akademperiodika, Kyiv, 2014.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).