Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 427, Issue 1-2, Pages L1-L5Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2006.03.012
Keywords
Cu-Fe alloy; phase separation; rapid solidification; undercooling; peritectic reaction; microstructure
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Adopting cyclic superheating and DSC analysis, solidification behavior of undercooled CU70Fe30 alloy was investigated. The metastable phase separation is observed if the initial melt undercooling (Delta T) is above 56 K. The primary solidification of Fe-rich phase in the phase-separated melt is due to its high nucleation driving force i.e. a high Delta T. The coarsening of Fe-rich droplets is controlled by AT and can be ascribed to the Ostwald ripening and coagulation effect in the melt. (c) 2006 Elsevier B.V. All rights reserved.
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