APPLICATION OF MATHEMATICAL MODELING IN ANALYSIS OF DILATOGRAMS OF MARTENSITIC TRANSFORMATION IN STEEL
DOI:
https://doi.org/10.34185/1991-7848.itmm.2024.01.027Keywords:
modeling, martensite, austenite, quenching, dilatogram.Abstract
The paper provides practical experience of applying mathematical modeling in the analysis of the kinetics of athermal martensitic transformation in low-alloy structural steel 30HGSA (Fe-0.30С-0.86Si-1.02Mn-0.84Сr, % wt.) using the dilatogram of the real quenching process. The change in the amount of martensite formed in the studied steel as a function of temperature during continuous quenching cooling is shown. The used technique for determining the phase ratio provides in situ correlation with the microstructural mechanisms implemented in the studied material during heat treatment. The obtained results will be used to develop parameters of heat treatment based on the principle of quenching and partitioning (Q&P) to improve the complex of properties of 30HGSA steel due to the creation of a multiphase structure.
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