Computer simulation of hardness and microstructure of casted steel 100Cr6

• Autorzy: Smoljan B. , Iljkić D. , Maretić M.

Identyfikatory

DOI

10.5604/18972764.1226312

• Języki publikacji: EN

Abstrakty

EN

Purpose: The research purpose is to upgrade the mathematical modelling and computer simulation of casting of steel. Design/methodology/approach: Based on theoretical analyses of physical processes which exist in casting systems the proper mathematical model is established and computer software is developed. Findings: On the basis of control volume method, the algorithm for prediction of mechanical properties and microstructure distribution in steel casting has been developed. Research limitations/implications: The computer simulation of casting of steel is consisted of two parts: numerical calculation of transient temperature field in process of solidification and cooling of casting to the final temperature, and of numerical calculation of mechanical properties. Practical implications: The hardness and microstructures of casting has been predicted based on CCT diagrams. Physical properties that were included in the model, such as heat conductivity coefficient, heat capacity and surface heat transfer coefficient were obtained by the inversion method. Originality/value: The algorithm is completed to solve 3-D situation problems such as the casting of complex cylinders, cones, spheres, etc. The established model of steel casting can be successfully applied in the practice of casting

Słowa kluczowe

EN

steel casting; computer simulation; hardness; microstructure

PL

odlewanie stali; symulacja komputerowa; twardość; mikrostruktura

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2016
• Tom: Vol. 78, nr 1
• Strony: 23--28
• Opis fizyczny: Bibliogr. 18 poz.

Twórcy

autor

Smoljan B.

• Department of Materials Science and Engineering, Faculty of Engineering, University of Rijeka, Vukovarska 58, HR-51000 Rijeka, Croatia

autor

Iljkić D.

• Department of Materials Science and Engineering, Faculty of Engineering, University of Rijeka, Vukovarska 58, HR-51000 Rijeka, Croatia

autor

Maretić M.

• Department of Materials Science and Engineering, Faculty of Engineering, University of Rijeka, Vukovarska 58, HR-51000 Rijeka, Croatia

Bibliografia

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• [12] C.H. Gur, J. Pan, Handbook of Thermal Process Modelling Steels, CRC Press, 2008.
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• [14] B. Smoljan, D. Iljkić, H. Novak, Estimation of coefficient of heat conductivity and heat transfer coefficient in the numerical model of the steel quenching, Proceedings of the 2nd Mediterranean Conference on Heat Treatment and Surface Engineering, Dubrovnik - Cavtat, 2013.
• [15] L. Sowa, Mathematical Model of Solidification of the Axisymmetric Casting While Taking Into Account its Shrinkage, Journal of Applied Mathematics and Computational Mechanics 13/4 (2014) 123-130
• [16] M. Flemings, Solidification Processing, McGraw-Hill Book Company, 1984.
• [17] H. Bhadeshia, Material Factors, in Handbook of Residual Stress and Deformation of Steel, eds. G. Totten, M. Howes, T. Inoue, ASM International, 2002.
• [18] B. Smoljan, D. Iljkić, L. Štic, Mathematical modelling and computer simulation of non-monotonic quenching, Proceedings of the 23rd IFHTSE Congress, Savannah, Georgia, 2016.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)