A model for lamellar-rod eutectic transition

TitleA model for lamellar-rod eutectic transition
Publication TypeBook Chapter
Year of Publication2007
AuthorsLiu S, Lee JH, Trivedi R
EditorChang YW, Kim NJ, Lee CS
Book TitlePricm 6: Sixth Pacific Rim International Conference on Advanced Materials and Processing, Pts 1-3
CityStafa-Zurich
PublisherTrans Tech Publications Ltd
Volume561-565
Pages1003-1006
Series TitleMaterials Science Forum
ISBN Number0255-5476
Accession NumberISI:000252473301049
Keywordsgrowth
Abstract

Critical experiments in Al-Cu hypo-eutectic alloys have been carried out in capillary samples in order to establish the lamellar/rod eutectic transition condition. It is shown that this transition occurs over a range of compositions. Physics of the diffuse nature of this transition is proposed and the dynamics of the transition is shown to give a specific geometric relationship between the lamellar and rod spacing at the transition. A model of lamellar/rod eutectic transition is established that incorporates the dynamic nature of this transition and the anisotropy in interfacial energies.