On the dendritic tip stability parameter for aluminium alloy solidification

M. Rebow; D. J. Browne

doi:10.1016/j.scriptamat.2006.11.025

On the dendritic tip stability parameter for aluminium alloy solidification

M. Rebow, D. J. Browne

Research output: Contribution to journal › Article › peer-review

Abstract

The dendritic tip stability parameter σ^* is estimated for two aluminium alloys, namely Al-4 wt.%Cu and Al-2 wt.%Si, based on recently measured values of their crystal-melt surface energy anisotropy strength and linear scaling of the microscopic solvability theory. The influence of the stability parameter on columnar dendritic growth models of solidification, and consequently on columnar to equiaxed transition (CET), is determined, with the help of modified Hunt CET maps and meso-scale front tracking simulations.

Original language	English
Pages (from-to)	481-484
Number of pages	4
Journal	Scripta Materialia
Volume	56
Issue number	6
DOIs	https://doi.org/10.1016/j.scriptamat.2006.11.025
Publication status	Published - Mar 2007
Externally published	Yes

Keywords

Columnar/equiaxed microstructure
Dendritic growth
Metal alloys
Modelling

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10.1016/j.scriptamat.2006.11.025

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title = "On the dendritic tip stability parameter for aluminium alloy solidification",

abstract = "The dendritic tip stability parameter σ* is estimated for two aluminium alloys, namely Al-4 wt.%Cu and Al-2 wt.%Si, based on recently measured values of their crystal-melt surface energy anisotropy strength and linear scaling of the microscopic solvability theory. The influence of the stability parameter on columnar dendritic growth models of solidification, and consequently on columnar to equiaxed transition (CET), is determined, with the help of modified Hunt CET maps and meso-scale front tracking simulations.",

keywords = "Columnar/equiaxed microstructure, Dendritic growth, Metal alloys, Modelling",

author = "M. Rebow and Browne, {D. J.}",

note = "Funding Information: This work is supported by the European Space Agency through CETSOL (Columnar to Equiaxed Transition in SOLidification processing), a project of the Microgravity Application Promotion programme; Contract Number 14313/01/NL/SH.",

year = "2007",

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doi = "10.1016/j.scriptamat.2006.11.025",

language = "English",

volume = "56",

pages = "481--484",

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AU - Rebow, M.

AU - Browne, D. J.

N1 - Funding Information: This work is supported by the European Space Agency through CETSOL (Columnar to Equiaxed Transition in SOLidification processing), a project of the Microgravity Application Promotion programme; Contract Number 14313/01/NL/SH.

PY - 2007/3

Y1 - 2007/3

N2 - The dendritic tip stability parameter σ* is estimated for two aluminium alloys, namely Al-4 wt.%Cu and Al-2 wt.%Si, based on recently measured values of their crystal-melt surface energy anisotropy strength and linear scaling of the microscopic solvability theory. The influence of the stability parameter on columnar dendritic growth models of solidification, and consequently on columnar to equiaxed transition (CET), is determined, with the help of modified Hunt CET maps and meso-scale front tracking simulations.

AB - The dendritic tip stability parameter σ* is estimated for two aluminium alloys, namely Al-4 wt.%Cu and Al-2 wt.%Si, based on recently measured values of their crystal-melt surface energy anisotropy strength and linear scaling of the microscopic solvability theory. The influence of the stability parameter on columnar dendritic growth models of solidification, and consequently on columnar to equiaxed transition (CET), is determined, with the help of modified Hunt CET maps and meso-scale front tracking simulations.

KW - Columnar/equiaxed microstructure

KW - Dendritic growth

KW - Metal alloys

KW - Modelling

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U2 - 10.1016/j.scriptamat.2006.11.025

DO - 10.1016/j.scriptamat.2006.11.025

M3 - Article

AN - SCOPUS:33846048893

SN - 1359-6462

VL - 56

SP - 481

EP - 484

JO - Scripta Materialia

JF - Scripta Materialia

IS - 6

ER -

On the dendritic tip stability parameter for aluminium alloy solidification

Abstract

Keywords

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