Development of a microsegregation model for application in a micro-macro model

Suresh Sundarraj, Vaughan R Voller

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

3 Scopus citations

Abstract

Assumptions associated with transport processes in columnar dendritic arm spacings in the solid-liquid mushy region of a binary alloy solidification are discussed. Using conservation variables and a Landau transformation, an equation governing the mass diffusion in a coarsening arm space (microsegregation) is presented. A fixed grid, fixed time step numerical solution suitable for the analysis of systems in which the solute density in the arm spacing changes (an open system) is developed. The model and numerical solutions are tested on comparison with experiments. Discussions and numerical experiments related to the analysis of open systems are undertaken.

Original languageEnglish (US)
Title of host publicationMicro/Macro Scale Phenomena in Solidification
PublisherPubl by ASME
Pages35-42
Number of pages8
Volume218
ISBN (Print)0791810607
StatePublished - Dec 1 1992
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Anaheim, CA, USA
Duration: Nov 8 1992Nov 13 1992

Other

OtherWinter Annual Meeting of the American Society of Mechanical Engineers
CityAnaheim, CA, USA
Period11/8/9211/13/92

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    Sundarraj, S., & Voller, V. R. (1992). Development of a microsegregation model for application in a micro-macro model. In Micro/Macro Scale Phenomena in Solidification (Vol. 218, pp. 35-42). Publ by ASME.