MELTING BEHAVIORS OF DIRECTIONALLY GROWN EUTECTIC STRUCTURES
1993
The melting behaviors of directionally grown eutectic structures of Al-Cu,
AL-Ni and Al-Si alloys have been investigated using directional solidification/remelting
technique. No complete reversibility of processes between melting of eutectic structure and its
solidification was revealed. The melting processes of eutectic structures, not only regular
lamellar or rodlet but also irregular lamellar, may be that the two component phases of an
eutectic structure are priorly decomposed on the melting interfaces simultaneously, and dis-
persed into liquid region as their own phases, then these disperse phases of different composi-
tions dissolved further to form a homogeneous single liquid phase at higher temperatures.
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