Authors : Alain Ngenzi

Volume/Issue : Volume 11 - 2026, Issue 1 - January

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Google Scholar : https://tinyurl.com/y2kea5dc

Scribd : https://tinyurl.com/2vatb653

DOI : https://doi.org/10.38124/ijisrt/26jan1428

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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

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