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Selection criterion for the growing dendritic tip in a non-isothermal binary system under forced convective flow

Alexandrov, Dimitri and Galenko, Peter and Herlach, Dieter (2010) Selection criterion for the growing dendritic tip in a non-isothermal binary system under forced convective flow. Journal of Crystal Growth, pp. 2122-2127.

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Abstract

A free dendrite growth during solidification into external forced flow is analyzed using a sharp interface model. A criterion for selection of the stable growth mode is derived for the axisymmetric dendrite growing into non-isothermal binary system under convective flow. The criterion obtained rallies analytic results for dendrite growth under forced convection in a pure system [Ph. Bouissou, P. Pelce, Phys. Rev. A 40 (1989) 6673] and dendrite growth in a stagnant binary system [M. Ben Amar, P. Pelce, Phys. Rev. A 39 (1989) 4263].

Document Type:Article
Additional Information:Reviewer Report: The authors provide an analysis of dendritic growth in the presence of forced convection. The main new feature is that the analysis of Ph. Bouissou and P.Pelce is extended to the case of a binary alloy, where heat and solute diffusion play both a role. I find this paper extremely useful, because exactly this case was missing in the literature so far - the authors should be thanked for undertaking the tedious derivations. All results appear to be correct. The paper is also well written. I recommend that the paper be published as is.
Title:Selection criterion for the growing dendritic tip in a non-isothermal binary system under forced convective flow
Authors:
AuthorsInstitution or Email of Authors
Alexandrov, DimitriUral State University, Ekaterinenburg, RUS
Galenko, Peterpeter.galenko@dlr.de
Herlach, Dieterdieter.herlach@dlr.de
Date:May 2010
Journal or Publication Title:Journal of Crystal Growth
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Page Range:pp. 2122-2127
Status:Published
Keywords:free dendrite growth
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Materialwissenschaftliche Forschung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Dieter Herlach
Deposited On:18 Jun 2010 08:21
Last Modified:12 Dec 2013 20:57

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