Tests of Theories for Nonplanar Growth During Rapid Alloy Solidification
CitationAziz, Michael J. 2004. Tests of theories for nonplanar growth during rapid alloy solidification. In Solidification Processes and Microstructures: A Symposium in Honor to Wiflried Kurz: Proceedings of Symposium held at the 2004 TMS Annual Meeting, Charlotte, North Carolina, March 14-18, 2004, ed. Michel Rappaz, Christoph Beckermann, and Rohit Trivedi, 289-295. Warrendale, Pennsylvania: TMS.
AbstractDuring rapid solidification, kinetically suppressed solute partitioning at the crystal/melt interface, as well as kinetic interfacial undercooling, become important. Both of these effects have significant stabilizing influences on a planar interface during rapid solidification. We review experimental tests we have performed of models for the transition from planar to cellular growth, and for the velocity-undercooling function of the dendrite tip, in the velocity regime where nonequilibrium interface kinetics are important.
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