SIMULATING CONVECTION AND MACROSEGREGATION IN SUPERALLOYS

Authors
FELICELLI SD POIRIER DR GIAMEI AF HEINRICH JC
Citation
Sd. Felicelli et al., SIMULATING CONVECTION AND MACROSEGREGATION IN SUPERALLOYS, JOM, 49(3), 1997, pp. 21-25
Citations number
17
Categorie Soggetti
Metallurgy & Metallurigical Engineering",Mineralogy,"Material Science
Journal title
JOM → ACNP
ISSN journal
10474838
Volume
49
Issue
3
Year of publication
1997
Pages
21 - 25
Database
ISI
SICI code
1047-4838(1997)49:3<21:SCAMIS>2.0.ZU;2-L
Abstract
Numerical simulations using a mathematical model of the dendritic soli dification of multicomponent alloys that includes thermosolutal convec tion and macrosegregation were conducted on nickel-based alloys. The r esults show that segregation patterns vary greatly with cooling condit ions, adopting several shapes and levels of intensity. In addition, th e segregation I patterns are particularly sensitive to the values of t he equilibrium partition coefficients of the alloy components.