Coupled two-phase [α(Al) + θ(Al 2Cu)] planar growth and destabilisation along the univariant eutectic reaction in Al–Cu–Ag alloys

Coupled two-phase planar univariant eutectic growth occurs in Al–Cu–Ag alloys for different compositions and over a range of solidification velocities along the univariant eutectic reaction L → α(Al) + θ(Al 2Cu). The classical relationship λ 2 v=constant is obeyed. Two limits of stability are presen...

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Bibliographic Details
Published in:Scripta materialia 2004-09, Vol.51 (6), p.533-538
Main Authors: De Wilde, Jimmy, Froyen, Ludo, Rex, Stephan
Format: Article
Language:English
Subjects:
Applied sciences
Directional solidification
Eutectic solidification
Exact sciences and technology
Metals. Metallurgy
Microstructure
Multicomponent
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Summary:Coupled two-phase planar univariant eutectic growth occurs in Al–Cu–Ag alloys for different compositions and over a range of solidification velocities along the univariant eutectic reaction L → α(Al) + θ(Al 2Cu). The classical relationship λ 2 v=constant is obeyed. Two limits of stability are present: morphological stability and stability of the coupling.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2004.05.040