Mechanically driven phase separation and corresponding microhardness change in Cu60Zr20Ti20 bulk metallic glass

Q.P. Cao, J.F. Li, Y.H. Zhou, Jianzhong Jiang

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Abstract

Rolling deformation of bulk Cu60Zr20Ti20 metallic glass has been performed at cryogenic temperature. The specimens exhibit excellent ductility, and are rolled up to 97% reduction in thickness without fracture. Crystallization is suppressed during the deformation, however, phase separation is observed in the glassy matrix when the thickness reduction exceeds 89%. Once the phase separation occurs, the microhardness of the specimen increases drastically, indicating the existence of work hardening by severe plastic deformation of the metallic glass.
Original languageEnglish
JournalApplied Physics Letters
Volume86
Issue number8
Pages (from-to)081913
ISSN0003-6951
DOIs
Publication statusPublished - 2005

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Copyright (2005) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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