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

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  • Alain Ngenzi

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.

Suggested Citation

  • Alain Ngenzi, 2026. "Modeling Ferrite Formation in Mild Steel Weld Using FEM and JMAK Equation," International Journal of Innovative Science and Research Technology (IJISRT), IJISRT Publication, vol. 11(01), pages 3628-3636, January.
    • Handle: RePEc:cvr:ijisrt:2026:01:ijisrt26jan1428
    DOI: 10.38124/ijisrt/26jan1428
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