Diffusion-induced interface motion in ternary systems with interfacial kinetic barriers

William C. Johnson, B. R. Hinderliter

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A front-tracking, finite-difference scheme is used to investigate the effect of interfacial kinetic barriers on the motion of a planar interface during a diffusional phase transformation in a ternary system. Composition fields within each phase are solved explicitly while interfacial compositions and fluxes are determined using a fully implicit technique. Numerical calculations indicate that interfacial kinetic barriers can change both the sign and magnitude of the interface velocity at short diffusion times and result in shifts in interfacial composition on the order of several atomic percent, as compared with interfacial compositions obtained under local thermodynamic equilibrium at the interface.

Original languageEnglish (US)
Title of host publicationSolidification
PublisherMinerals, Metals & Materials Soc (TMS)
Number of pages10
StatePublished - Jan 1 1998
EventProceedings of the 1998 TMS Annual Meeting - San Antonio, TX, USA
Duration: Feb 15 1998Feb 19 1998


OtherProceedings of the 1998 TMS Annual Meeting
CitySan Antonio, TX, USA


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