Phase-field modelling of zinc dendrite growth in ZnAlMg coatings - Matériaux (MAT) Access content directly
Conference Papers Year : 2024

Phase-field modelling of zinc dendrite growth in ZnAlMg coatings

Mikel Bengoetxea Aristondo
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  • PersonId : 1353664
K Ammar
Samuel Forest
Vincent Maurel
Houssem Eddine Chaieb
  • Function : Author

Abstract

A phase-field model for dendritic solidification is applied to hot-dip ZnAlMg coatings, in order to study the morphology of zinc dendrites and the solute segregation leading to the formation of eutectics. These aspects define the microstructure that conditions the corrosion resistance and the mechanical behaviour of the coating. The model implemented is partially coupled with the tracking of crystal orientation in solid grains, which allows anisotropy effects to be considered in multidendrite simulations. For this purpose, the composition of a hot-dip ZnAlMg coating is assimilated to a dilute pseudo-binary system. 1D and 2D simulations of isothermal solidification are performed in a finite element solver, and the results are compared with analytical solutions for growth velocity and concentration profiles.
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hal-04463390 , version 1 (20-02-2024)

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Attribution - NonCommercial

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Mikel Bengoetxea Aristondo, K Ammar, Samuel Forest, Vincent Maurel, Houssem Eddine Chaieb, et al.. Phase-field modelling of zinc dendrite growth in ZnAlMg coatings. GALVATECH 2023 - 13th International Conference on Zinc and Zinc Alloy Coated Steel Sheet, The Corrosion Science Society of Korea, Oct 2023, Seoul, South Korea. pp.93-103, ⟨10.14773/CST.2024.23.2.93⟩. ⟨hal-04463390⟩
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