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Multiphase-Field Modeling of Micropore Formation in Metallic Alloys

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Abstract

A 3D phase-field (PhF) model has been developed to study the formation of micropores constrained to grow within a well-developed solid network. The model accounts for the equilibrium condition at triple (solid–liquid–pore) lines and the partitioning of dissolved gases. Growth of a micropore in a representative volume element taken from X-ray tomography was simulated, which offered the possibility to study the pore evolution in temporal and spatial resolutions that are not possible in experiments.

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Notes

  1. ISD plots, first introduced by the group of Voorhees and coworkers is a two-dimensional probability contour plot, P(κ 1, κ 2), which measures the probability of having a surface patch, with its principal curvatures falling in the range [κ 1 − Δκ/2, κ 1 + Δκ/2] and [κ 2 − Δκ/2, κ 2 + Δκ/2]. Δκ is the binning size used for calculating the ISD plot.

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The authors would like to thank the Swiss Competence Centre for Materials Science and Technology (CCMX) and partner companies, Asulab, Constellium, Kugler Bimetal, Novelis, Rolex and Varinor, within the thematic area ‘‘Multi-scale, multi-phenomena modeling of metallic systems’’ for funding this research.

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Author notes

  1. Hossein Meidani (Ph.D. Student, Dev. Engineer)

    Present address: Thermal Transverse Technologies (TTTM), Alstom (Switzerland), Brown Boveri Str. 7, 5401, Baden, Switzerland

Authors and Affiliations

  1. Computational Materials Laboratory, Institute of Materials, Ecole Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland

    Hossein Meidani (Ph.D. Student, Dev. Engineer), Alain Jacot (Senior Scientist) & Michel Rappaz (Professor)

  2. Calcom ESI SA, Parc Scientifique, PSE-A, 1015, Lausanne, Switzerland

    Alain Jacot (Senior Scientist)

Authors
  1. Hossein Meidani
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  2. Alain Jacot
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  3. Michel Rappaz
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Correspondence to Hossein Meidani.

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Manuscript submitted April 14, 2014.

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Meidani, H., Jacot, A. & Rappaz, M. Multiphase-Field Modeling of Micropore Formation in Metallic Alloys. Metall Mater Trans A 46, 23–26 (2015). https://doi.org/10.1007/s11661-014-2647-9

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  • DOI: https://doi.org/10.1007/s11661-014-2647-9

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