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A diffuse-interface model of reactive wetting with intermetallic formation
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.ORCID iD: 0000-0003-3132-7252
Metallurgy Division, National Institute of Standards and Technology.
Applied and Computational Mathematics Division, National Institute of Standards and Technology.
Metallurgy Division, National Institute of Standards and Technology.
2012 (English)In: Acta Materialia, ISSN 1359-6454, E-ISSN 1873-2453, Vol. 60, no 9, 3799-3814 p.Article in journal (Refereed) Published
Abstract [en]

A diffuse-interface model of reactive wetting with intermetallic formation is developed that incorporates fluid flow, phase change and solute diffusion. The model is based on the total molar Gibbs energy of a ternary system with four phases. Numerical simulations were performed using a mesh-adaptive finite element method, revealing the complex behavior of the reactive wetting process. The model was verified against equilibrium states derived from the classical phase diagram and from interface energy considerations. Dynamic results show that the intermetallic can either precede or follow the spreading liquid droplet, depending on the time and the choice of interface energy and kinetic coefficients. Despite this difference, the spreading rate was not affected for the cases considered.

Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 60, no 9, 3799-3814 p.
Keyword [en]
Reactive wetting, Navier–Stokes flow, Multicomponent and multiphase model, Phase-field method, Intermetallic formation
National Category
Metallurgy and Metallic Materials Fluid Mechanics and Acoustics Computational Mathematics
Identifiers
URN: urn:nbn:se:kth:diva-93893DOI: 10.1016/j.actamat.2012.03.047ISI: 000304844400013Scopus ID: 2-s2.0-84860312358OAI: oai:DiVA.org:kth-93893DiVA: diva2:524530
Note
QC 20120619Available from: 2012-05-02 Created: 2012-05-02 Last updated: 2017-12-07Bibliographically approved

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Villanueva, Walter

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