Mathematical Modelling of Kinetics of Decomposition of the Supercooled Austenite in Alloyed Steels

V. V. Kaverynsky, A. I. Trotsan, Z. P. Sukhenko

I. M. Frantsevich Institute for Problems in Materials Science, NAS of Ukraine, 3 Academician Krzhyzhanovsky Str., UA-03142 Kyiv, Ukraine

Received: 16.03.2017; final version - 10.08.2017. Download: PDF

A mathematical model and a corresponding computer program, describing austenite transformation in the alloyed steels with a wide range of compositions, are developed. The model allows calculations of both the thermodynamic equilibrium (including the extrapolation in nonequilibrium states) and the kinetics of ferrite, pearlite, bainite, and martensitic transformations. Verification of the simulation results using the experimental data confirms the sufficient reliability of the proposed computer model to its practical application. The model capabilities are demonstrated by some examples of typical structural alloyed steels.

Key words: phase diagrams, kinetics of phase transformations, austenite, steel, modelling.



PACS: 07.05.Tp, 61.72.Cc, 64.30.Ef, 64.70.kd, 64.75.Op, 81.30.Bx, 81.30.Kf

Citation: V. V. Kaverynsky, A. I. Trotsan, and Z. P. Sukhenko, Mathematical Modelling of Kinetics of Decomposition of the Supercooled Austenite in Alloyed Steels, Metallofiz. Noveishie Tekhnol., 39, No. 8: 1051—1068 (2017) (in Russian)

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