KnE Engineering
ISSN: 2518-6841
The latest conference proceedings on all fields of engineering.
Application of Computer Simulation to Study the Features of the Austenite Isothermal Transformation in Steels
Published date: Apr 15 2019
Journal Title: KnE Engineering
Issue title: XIX International scientific-technical conference “The Ural school-seminar of metal scientists-young researchers”
Pages: 1–10
Authors:
Abstract:
An algorithm was developed for the simulation of a phase transition in solid state which makes it possible to obtain the kinetic curves of transformation under different initial conditions (the number and arrangement of new phase nuclei, the distance between the nearest nuclei). The simulation results were analyzed using the KolmogorovJohnson-Mehl-Avrami equation and the corresponding coefficients were determined. The correlation between the simulation results and the experimental kinetics of the austenite isothermal transformation in alloyed steels was shown.
Keywords: computer simulation; modeling; phase transformation; kinetics; KJMA equation; logistic function; steel.
References:
[1] H. F. Lan, L. X. Du, Q. Li, Improvement of strength-toughness combination in austempered low carbon bainitic steel: The key role of refining prior austenitic grain size, J. Alloys Comp. 710 (2017) 702–710.
[2] B. Avishan, M. Tavakolian, S. Yazdani, Two-step austempering of high performance steel with nanoscale microstructure, Mat. Sci. Eng. A. 693 (2017) 178–185.
[3] J. Kobayashi, D. Ina, N. Yoshikawa, K. Sugimoto, Effects of the Addition of Cr, Mo and Ni on the Microstructure and Retained Austenite Characteristics of 0.2 % C – Si – Mn – Nb Ultrahigh-strength TRIP-aided Bainitic Ferrite Steels, ISIJ Int. 52 (2012) 1894–1901.
[4] L. Zhao, L. Qian, J. Meng, Below-Ms austempering to obtain refined bainitic structure and enhanced mechanical properties in low-C high-Si/Al steels, Scr. Mat. 112 (2016) 96–100.
[5] E. J. Seo, L. Cho, Y. Estrin, B. C. De Cooman, Microstructure-mechanical properties relationships for quenching and partitioning (Q&P) processed steel, Acta Mat. 113 (2016) 124–139.
[6] A. J. Clarke, J. G. Speer, M. K. Miller, Carbon partitioning to austenite from martensite or bainite during the quench and partition (Q&P) process: A critical assessment, Acta Mat. 56 (2008) 16–22.
[7] J. G. Speer, F. C. Rizzo, D. K. Matlock, D. V. Edmonds, The ”Quenching and Partitioning” Process: Background and Recent Progress, Mat. Res. 8 (2005) 417–423.
[8] R. W. Cahn, P. Haasen, Physical Metallurgy, Vol. 2, North-Holland, 1996.
[9] J. W. Christian, The Theory of Transformations in Metal and Alloys, Pergamon, 2002.
[10] A.N. Kolmogorov, On the statistical theory of the crystallization of metals, Izv. AN SSSR. 3 (1937) 355–359 (in Russian).
[11] W. A. Johnson, R. F. Mehl, Reaction kinetics in process of nucleation and growth, Trans. AIME. 135 (1939) 416–468.
[12] M. Avrami, Kinetics of phase change I. General theory, J. Chem. Phys. 7 (1939) 1103– 1112.
[13] M. Avrami, Kinetics of phase change II. Transformation-time relations for random distribution of nuclei, J. Chem. Phys. 8 (1940) 212–224.
[14] M. Avrami, Kinetics of phase change III. Granulation, phase change and microstructure, J. Chem. Phys. 9 (1941) 177–184.
[15] J. B. Austin, R. L. Rickett, Kinetics of the Decomposition of Austenite at Constant Temperature, Trans. AIMME. 964 (1939) 1–20.
[16] J. Cai, R. Liu, Weibull Mixture Model for Modeling Nonisothermal Kinetics of Thermally Stimulated Solid-State Reactions: Application to Simulated and Real Kinetic Conversion Data, J. Phys. Chem. B. 111 (2007) 10681–10686.
[17] Yu. V. Yudin, M. V. Maisuradze, A. A. Kuklina, Describing the Isothermal Bainitic Transformation in Structural Steels by a Logistical Function, Steel Transl. 47 (2017) 213–218.
[18] N. X. Sun, X. D. Liu, K. Lu An explanation to the anomalous Avrami exponent, Scr. Mat. 34 (1996) 1201–1207.
[19] S. H. M. Azghandi, V. G. Ahmadabadi, Investigation on decomposition behavior of austenite under continuous cooling in vanadium microalloyed steel (30MSV6), Mat. Design. 88 (2015) 751–758.
[20] T. Jia, M. Militzer, Z. Y. Liu, General Method of Phase Transformation Modeling in Advanced High Strength Steels, ISIJ Int. 50 (2010) 583–590.
[21] E.-S. Lee, Y. G. Kim, A Transformation Kinetic Model And Its Application To Cu – Zn – Al Shape Memory Alloys. Isothermal Conditions, Acta Metal. Mat. 38 (1990) 1669– 1676.
[22] P.D. Lebedev, A.A. Uspenskii, Program for constructing wave fronts and functions of the Euclidean distance to a compact nonconvex set, Certificate of state registration of the computer program №2017662074, 2017 (in Russian).
[23] M.A. Gervas’ev, O.V. Maslova, S.M. Illarionova, Kinetics of the bainite transformation in Cr-Ni-Mo steels with Al and Si, Izv. Vuz. Chern. Met. 57 (2014) 57–60 (in Russian).
[24] Z. Liu, R. O. Olivares, Y. Lei, Microstructural characterization and recrystallization kinetics modeling of annealing cold-rolled vanadium microalloyed HSLA steel, J. Alloys Comp. 679 (2016) 293–301.
