Abstract
amorphousalloy,thiswork has foundnoevidencefor it.Surface crystallization was found to occur prior to the major crystallization of -Al nanocrystals, which caused uneven foil thickness intransmission electron microscopy (TEM) specimens prepared by electro-polishing, resulting in artificial phase separation like contrast in TEMimage. Partially crystallized samples were composed of -Al nanocrystals with little solute content and an amorphous matrix. No soluteenrichment was found at the interface between -Al and the amorphous matrix, which acts as the heterogeneous nucleation sites for furtherformation of -Al crystal, resulting in interconnected nanograin microstructure.(Received June 17, 2005; Accepted July 27, 2005; Published December 15, 2005)Keywords: metallic glass, primary crystallization, energy filtered transmission electron microscopy, three-dimensional atom probe
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