Computer simulations of solute drag in grain boundary migration and phase transformations
2005 (English)In: Solid-Solid Phase Transformations in Inorganic Material 2005, Vol 2 / [ed] Howe, JM; Laughlin, DE; Lee, JK; Dahmen, U; Soffa, WA, 2005, 817-822 p.Conference paper (Refereed)
The effect of alloying elements on migrating interfaces, so-called solute drag, has been studied for many years and different theoretical treatments have been presented. In this work the approach based on the dissipation of Gibbs energy due to diffusion inside the interface, originally introduced by Hillert and Sundman, has been applied and coupled to simulations of grain growth using the phase-field method. In the phase-field simulations an effective mobility, which takes the effect of solute-drag into account, has been formulated and implemented into a phase-field software. The approach is not restricted only to curvature driven grain growth, also recrystallization can be taken into account. In addition, the austenite to ferrite transformation has been studied using a recent coupling between the DICTRA software and the dissipation of Gibbs energy approach.
Place, publisher, year, edition, pages
2005. 817-822 p.
grain growth, modelling, simulation, phase-field
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-5784ISI: 000238838100089ScopusID: 2-s2.0-33645238076OAI: oai:DiVA.org:kth-5784DiVA: diva2:10278
International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM 2005) Location: Phoenix, AZ Date: MAY 29-JUN 03, 2005
QC 201110072005-08-232005-08-232011-10-17Bibliographically approved