The distribution of Cu atoms in an Fe44CO44Zr7B4Cu1 nanocrystalline alloy (
HITPERM) has been studied by the three-dimensional atom probe technique. Cu
atoms do not form clusters prior to the crystallization reaction, and they
are partitioned in the remaining amorphous phase after crystallization. A
Cu-free Fe44.5Co44.5Zr7B4 alloy has the same microstructure as the alloy wi
th 1% Cu. (C) 2001 Acta Materialia Inc, Published by Elsevier Science Ltd.
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