| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1600908 | Intermetallics | 2011 | 7 Pages |
Abstract
⺠Specific centerline segregation is firstly observed in directionally solidified TiAl-Nb ingots. ⺠Reasons of this effect are hydrodynamics; heat- and mass transfer of rejected Al into melt. ⺠Primary Al segregation appearance ahead of growth interface is convection-induced. ⺠Peritectic transformation of Al-enriched axial “spindle” area follows afterwards in solid. ⺠Solidification conditions have been optimized numerically to avoid undesirable segregation.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
A. Kartavykh, V. Ginkin, S. Ganina, S. Rex, U. Hecht, B. Schmitz, D. Voss,