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On the Crystallization Process of Hypoeutectic Al‐6 % Cu,Unmodified and Sr‐Modified Al‐2 % Si Solidification Alloys
Author(s) -
Fjellstedt J.,
Fredriksson H.
Publication year - 2003
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200390002
Subject(s) - materials science , eutectic system , crystallization , metallurgy , process (computing) , microstructure , chemical engineering , computer science , engineering , operating system
The solidification process of some hypoeutectic aluminum alloys was studied over a wide range of cooling rates. Microsegregation effects were characterized by the minimum concentration of solute found in primary dendrite trunks (see Figure for a typical example), using microprobe analysis, and the fraction of eutectic phases evaluated as a function of the cooling rate. Finally, a non‐equilibrium thermodynamic model of the process, which is able to explain some of the experimental observations, was developed.