A diffuse-interface model of reactive wetting with intermetallic formation

QC 20120619
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.

Boettinger, W.J.Metallurgy Division, National Institute of Standards and Technology (författare)
McFadden, G.B.Applied and Computational Mathematics Division, National Institute of Standards and Technology (författare)
Warren, J.A.Metallurgy Division, National Institute of Standards and Technology (författare)
KTHKärnkraftssäkerhet (creator_code:org_t)

Av författaren/redakt...: Villanueva, Walt ...; Boettinger, W.J.; McFadden, G.B.; Warren, J.A.

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Materialteknik; och Metallurgi och m ...

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Maskinteknik; och Strömningsmekani ...

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