Modeling Ferrite Formation in Mild Steel Weld Using FEM and JMAK Equation

Alain Ngenzi ()

International Journal of Innovative Science and Research Technology (IJISRT), 2026, vol. 11, issue 01, 3628-3636

Abstract: Having good mechanical properties in the welded steel joint, need to predict accurately the volume fraction of the phase in joint. In hypo-eutectoid steel, to improve the mechanical properties requires determining the kinetics of phase transformation of the austenite to pro-eutectoid steel. This paper proposed a method that can predict the volume fraction of ferrite in mild steel welded joints. To do so, the combination of the finite element method and the JMAK equation was used. TTT diagram and Fe-C equilibrium diagram were considered. The results showed that due to the low carbon content in the steel, the volume fraction of ferrite was determined in the austenite ferrite boundary. The predicted volume fraction was correlated with experimental work documented in the literature.

Keywords: Finite Element Analysis, JMAK Equation; Volume Fraction of Ferrite; TTT Diagram. (search for similar items in EconPapers)
Date: 2026
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Persistent link: https://EconPapers.repec.org/RePEc:cvr:ijisrt:2026:01:ijisrt26jan1428

DOI: 10.38124/ijisrt/26jan1428

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