Numerical study of TRIP transformation in 35NCD16 steel-effects of plate orientation and some criteria

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Published Dec 22, 2021
DOI https://doi.org/10.3221/IGF-ESIS.59.29

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Mounir Gaci
Laboratory of Mechanics, University Frères Mentouri Constantine 1, Constantine, Algeria
Fedaoui Kamel
University Frères Mentouri Constantine 1, Constantine, Algeria
https://orcid.org/0000-0003-0885-6914 Lazhar Baroura
University Frères Mentouri Constantine 1, Constantine, Algeria
https://orcid.org/0000-0002-6747-5049 Amar Talhi
Metallurgy and Materials Engineering, Foundry laboratory, Badji Mokhtar University - Annaba, Algeria

Abstract

This study aims to analyze the effect of thermo mechanical coupling damage in the presence of a phase change (austenite/martensite) in 35NCD16 steel. The impact of increasing mechanical traction load, accompanied by a martensitic transformation on the scale of a single grain with boundary has been studied. The prediction transformation of induced plasticity (TRIP) was evaluated by taking into account the following parameters: twenty shear directions of the martensitic plates, two values of the shear deformation of the martensitic plates, energetic and thermodynamics criteria for getting in order the transformation of the martensitic plates, elastoplastic behavior of the two areas in the first case (martensitic plate and grain boundary) and elastic behavior for the grain boundary in the second case. The numerical calculation is carried out using the finite element method (FEM), implemented in the Zebulon calculation code. The developed approach is validated using the available experimental results reported in the literature. The numerical results showed that the estimation of TRIP given by the energetics criteria with the values of the shear deformation (γ0 = 0.16) are closer to the experiment results.

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    Issue
    Vol. 16 No. 59 (2022): January 2022
    Section
    Analytical, Numerical and Physical Models

    How to Cite

    Gaci, M. (2021) “Numerical study of TRIP transformation in 35NCD16 steel-effects of plate orientation and some criteria”, Frattura ed Integrità Strutturale, 16(59), pp. 444–460. doi: 10.3221/IGF-ESIS.59.29.
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