Modelling the growth of feather crystals

Modelling the growth of feather crystals

An existing numerical model of dendritic growth has been adapted to model the growth of twinned columnar dendrites (“feather crystals”) in a binary aluminium alloy. Examination of the effect of dendrite tip angle on growth has led to an hypothesis regarding the stability of a pointed tip morphology...

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Veröffentlicht in:Acta Materialia 1997-02, Vol.45 (2), p.569-574
Hauptverfasser: Wood, H.J., Hunt, J.D., Evans, P.V.
Format: Artikel
Sprache:eng
Schlagworte:
ALUMINIUM ALLOYS
Applied sciences
BINARY ALLOY SYSTEMS
Cross-disciplinary physics: materials science
rheology
CRYSTAL GROWTH
DENDRITES
Exact sciences and technology
MATERIALS SCIENCE
MATHEMATICAL MODELS
Metals. Metallurgy
MORPHOLOGY
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Solidification
TWINNING
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Beschreibung
Zusammenfassung:An existing numerical model of dendritic growth has been adapted to model the growth of twinned columnar dendrites (“feather crystals”) in a binary aluminium alloy. Examination of the effect of dendrite tip angle on growth has led to an hypothesis regarding the stability of a pointed tip morphology in these crystals.
ISSN:1359-6454
1873-2453
DOI:10.1016/S1359-6454(96)00204-2