THE STUDY OF DECOMPOSITION KINETICS OF SUPERCOOLED AUSTENITE OF POWDER STEELS WITH DIFFERENT POROSITY BY SIMULATION MODELING
https://doi.org/10.17073/0368-0797-2016-3-191-196
Abstract
Thermokinetic diagrams of austenite decomposition are necessary to determine regimes of thermal treatment of steel. Building-up of these diagrams by experiments is diffi cult and labour intensive process. In this work the simulation model of process of phase transformations, taking into account the structure of powder steels, and the methodology for computer experiments with diff erent models of steel cooling are off ered. The proposed model allows to determine the kinetic parameters of austenite decomposition for two values of porosity steel according to the isothermal diagrams, and to predict the kinetics of the transformations in this steel as isothermal and continuous cooling. The adequacy of the model was tested on steels with diff erent porosity using published experimental data.
About the Authors
A. G. Ivashko
Tyumen State University
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair “Information Systems”,
Tyumen
M. S. Tsyganova
Tyumen State University
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Information Systems”,
Tyumen
R. I. Nabatov
Tyumen State University
Russian Federation
Russian Federation
Student,
Tyumen
References
1. Kisino T., Nagaki S., Inoue T. Phase Transformations, Thermal Conductions and Elasto-Plastic Stress in Hardening of Steel. Materials, 1979, vol. 28, no. 312, pp. 861–867.
2. Mirzaev D.A., Okishev K.Yu., Schastlivtsev V.M., Mirzoev A.A., Yakovleva I.L., Karzunov S.E. Kinetics of ferrite formation from austenite in Fe-9% Cr alloys with various concentrations of interstitial impurities. Physics of Metals and Metallography. 1998, vol. 86, Issue 6, pp. 590–600.
3. Okishev K.Yu. Nucleation site saturation and kinetic parameters of austenite-ferrite transformation in Fe-9% Cr alloys. Vestnik YuzhnoUral’skogo gosudarstvennogo universiteta. Seriya: Metallurgiya. 2012. Issue 15 (274), pp. 116–121. (In Russ.).
4. Tkachenko I.F., Tkachenko K.I. On kinetics of initial stage of the pearlite transformation into non-alloy steel. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2003, no. 4, pp. 43–45. (In Russ.).
5. Christian J.W. The Theory of Transformations in Metals and Alloys. Pergamon Press, 1965, 975 p. (Russ.ed.: Christian J. Teoriya prevrashchenii v metallakh i splavakh. Moscow: Mir, 1978. 805 p.).
6. Gurevich Yu.G., Ivashko A.G., Tsyganova M.S. Mathematical modeling of austenite decomposition to calculate the thermokinetic diagram. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2004, no. 9, pp. 45–48. (In Russ.).
7. Gurevich Yu.G., Tsyganova M.S. Calculating of isothermal and thermokinetic diagrams of powder steels with diff erent porosity. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2006, no. 1, pp. 47–50. (In Russ.).
8. Ivashko A.G., Tsyganova M.S., Polishchuk I.N. Computer modeling of phase transformations during thermal treatment. Vestnik Tyumenskogo gosudarstvennogo universiteta. 2008, no. 6, pp. 129–140. (In Russ.).
9. Gurevich Yu.G., Antsiferov V.N., Bulanov V.Ya., Ivashko A.G. Termokineticheskie i izometricheskie diagrammy poroshkovykh stalei: Spravochnik [Thermokinetic and isothermal diagrams of powder steels]. Gurevich Yu.G. ed. Ros. akad. nauk. Ural. otd-nie. In-t metal lurgii. Ekaterinburg: UrO RAN, 2001, 259 p. (In Russ.).
10. Ermakov S.S., Vyaznikov N.F. Poroshkovye stali i izdeliya [Powder steels and products]. Leningrad: Mashinostroenie, Leningradskoe otdelenie, 1990, 319 p. (In Russ.).
11. Antsiferov V.N., Bulanov V.Ya., Bogodukhov S.I., Grevnov L.M. Termokhimicheskaya obrabotka poroshkovykh stalei [Thermochemical treatment of powder steels]. Ekaterinburg: UrO RAN, 1997, 481 p. (In Russ.).
12. Antsiferov V.N., Bobrova S.N., Perel’man O.M., Shatsov A.A. Isothermal decomposition of austenite in powered nickel-molybdenum steel. Metal Science and Heat Treatment. 1993, vol. 35, no. 8, pp. 450–454.
13. Taha Hamdy A. Operations research: an introduction. New Jersey: Paerson Education, 2003. (Russ.ed.: Taha Hamdy A. Vvedenie v issledovanie operatsii. Moscow: Vil’yams, 2005, 912 p.).
14. Gurevich Yu.G., Ivashko A.G. Kinetika raspada pereokhlazhdennogo austenita poroshkovykh stalei [Kinetics of decomposition of supercooled austenite of powder steels]. Kurgan: Izd-vo Kurgan. gos. un-ta, 1998, 153 p. (In Russ.).
15. Brian D. Bunday. Basic Optimisation Methods. London: Edward Arnold, 1984. 128 p. (Russ.ed.: Bunday B. Metody optimizatsii. Vvodnyi kurs. Moscow: Radio i svyaz’, 1988, 128 p.).
Review
For citations:
Ivashko A.G., Tsyganova M.S., Nabatov R.I. THE STUDY OF DECOMPOSITION KINETICS OF SUPERCOOLED AUSTENITE OF POWDER STEELS WITH DIFFERENT POROSITY BY SIMULATION MODELING. Izvestiya. Ferrous Metallurgy. 2016;59(3):191-196. (In Russ.) https://doi.org/10.17073/0368-0797-2016-3-191-196
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