An analysis of modified Jominy-test (JMC®-test)

• Autorzy: Smoljan B. , Iljkić D. , Smokvina Hanza S. , Traven F.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The performance and possibilities of application of modified Jominy-test (JMC®-test) in computer simulation of high-hardenability steel quenching were investigated. JMC®-specimen and cylindrical specimen has similar cooling curves if the cylindrical specimen has been quenched in oil or cooled in air. Design/methodology/approach: The performances of investigated JMC®-test have been estimated by comparison of cooling curves of JMC®-specimen and cylindrical one cooled in different quenchants. Findings: Based on the sufficiency of both, time of cooling and similarity of cooling curves of investigated workpieces and JMC®-specimen it can be concluded that JMC®-test can be accepted as very useful test for estimation of the hardness of quenched workpieces made of high-hardenability steels. Research limitations/implications: The cooling curves of JMC®-specimen and the cooling curves of cylindrical specimens have been given by computer simulation and more experimental researches are advisable. Practical implications: The simulation of quenching based on modified Jominy-test can be applied for steels with high hardenability. This method of simulation is especially suitable for tools and dies steels. Originality/value: Using the results of simple modified Jominy-test (JMC®-test) in numerical modeling of steel quenching it is possible to simulate hardness in quenched specimen of high-hardenability steel.

Słowa kluczowe

EN

quenching; computer simulation; high-hardenability steels

PL

oziębianie; hartowanie; stal wysokohartowana; stal o dużej twardości; symulacja komputerowa

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Computational Materials Science and Surface Engineering
• Rocznik: 2009
• Tom: Vol. 1, nr 2
• Strony: 120--124
• Opis fizyczny: Bibliogr. 12 poz., rys., wykr.

Twórcy

autor

Smoljan B.

autor

Iljkić D.

autor

Smokvina Hanza S.

autor

Traven F.

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

Bibliografia

• [1] L.A. Dobrzański, W. Sitek, The modelling of hardenability using neural networks, Journal of Materials Processing Technology 92-93 (1999) 8-14.
• [2] L.A. Dobrzański, J. Trzaska, Application of neural networks to forecasting the CCT diagrams, Journal of Materials Processing Technology 157-158 (2004) 107-113.
• [3] B. Liščić, H. Tensi, W. Luty, Theory and technology of quenching, A Handbook, Springer-Verlag, Berlin-Heidelberg-New York, 1992.
• [4] P. Mayner, Hardenability concepts with application to steels, The Metallurgical Society/AIME, New York, 1978.
• [5] S. Patankar, Numerical Heat Transfer and Fluid Flow, McGrawHill Book Company, New York, 1980.
• [6] T. Reti, L. Horvath, I. Felde, A comparative study of methods used for the prediction of nonisothermal austenite decomposition, Journal of Materials Engineering and Performance 6 (1997) 433-442.
• [7] A. Rose, F. Wever, Atlas zur Wärmebehandlung der Stähle I, Verlag Stahleisen, Düsseldorf, 1954 (in German).
• [8] S. Serajzadeh, A mathematical model for prediction of austenite phase transformation, Materials Letters 58 (2004) 1597-1601.
• [9] B. Smoljan, The calibration of the mathematical model of steel quenching, Proceedings of the 5th World Seminar “Heat Treatment and Surface Engineering”, Isfahan, 1995, vol. 1, 709-715.
• [10] B. Smoljan, The calibration of the heat conductivity coefficient in mathematical model of steel quenching, Proceedings of the Conference MicroCAD`99, Miskolc, 1999, 143-148.
• [11] B. Smoljan, D. Rubeša, N. Tomašić, S. Smokvina Hanza, D. Iljkić, An analysis of application of modified Jominy-test in simulation of cold work tool steels quenching, International Journal of Microstructure and Materials Properties 2/1 (2007) 24-34.
• [12] B. Smoljan, N. Tomašić, D. Iljkić, I. Felde, T. Reti, Application of JM®-test in 3D Simulation of Quenching, Journal of Achievements in Materials and Manufacturing Engineering 17 (2006) 281-284.