Grain-boundary segregation and dynamic solute drag theory: A phase-field approach
2007 (English)In: Acta Materialia, ISSN 1359-6454, E-ISSN 1873-2453, Vol. 55, 955-960 p.Article in journal (Refereed) Published
We propose a model based on a phase-field approach to study grain-boundary segregation and solute drag. We will show that it is possible to model the dynamics of grain-boundary segregation to a stationary boundary as well as solute drag on a moving boundary with the same phase-field model. We shall achieve this by introducing a concentration dependency in the height of the double-well potential in the Gibbs-energy expression. As the model then will be able to treat the build-up of a concentration spike in the boundary as well as its disappearance we shall term this treatment dynamic solute-drag theory.
Place, publisher, year, edition, pages
2007. Vol. 55, 955-960 p.
phase-field models, solute drag, grain-boundary segregation
IdentifiersURN: urn:nbn:se:kth:diva-11084DOI: 10.1016/j.actamat.2006.09.017ISI: 000246435100018ScopusID: 2-s2.0-33845910381OAI: oai:DiVA.org:kth-11084DiVA: diva2:235442
QC 201102182009-09-162009-09-162011-02-18Bibliographically approved