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Study of the effect of growth kinetic and nucleation law on grain structure simulation during gas tungsten arc welding of Cu-Ni plate

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Abstract

The purpose of this article is to investigate the influence of growth kinetic models and nucleation models on the grain structure predicted by cellular automata (CA) during bead on Cu30Ni thin plate. Temperature field is obtained with the computation of two-dimensional finite element model (FE). Based on these temperatures, a CA model simulates the evolution of the envelope of grains along the solidification front. It is shown that for the same temperature field, the grains structure is modified if the growth model changes. The influence of the nucleation law parameters is also discussed from a modelling point of view. Experimental size of the weld pool are compared with thermal results and EBSD maps are compared with grain structure prediction obtained with the CA algorithm.

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Funding

All authors belong and were funded by the Université of Montpellier. Université de Montpellier is a university devoted to education and scientific research.

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Authors and Affiliations

  1. LMGC, Université de Montpellier, CNRS, Montpellier, France

    A. Chiocca, F. Soulié, F. Deschaux-Beaume & C. Bordreuil

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  1. A. Chiocca
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  2. F. Soulié
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  3. F. Deschaux-Beaume
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  4. C. Bordreuil
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Correspondence to C. Bordreuil.

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Recommended for publication by Commission IX - Behaviour of Metals Subjected to Welding

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Chiocca, A., Soulié, F., Deschaux-Beaume, F. et al. Study of the effect of growth kinetic and nucleation law on grain structure simulation during gas tungsten arc welding of Cu-Ni plate. Weld World 63, 887–901 (2019). https://doi.org/10.1007/s40194-019-00717-0

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  • DOI: https://doi.org/10.1007/s40194-019-00717-0

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