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Deformation‐induced microstructural heterogeneity in monolithic Zr 44 Ti 11 Cu 9.8 Ni 10.2 Be 25 bulk metallic glass
Author(s) -
Lee Min Ha,
Lee Jin Kyu,
Kim Kyung Tae,
Thomas Jürgen,
Das Jayanta,
Kühn Uta,
Eckert Jürgen
Publication year - 2009
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.200802242
Subject(s) - materials science , deformation (meteorology) , amorphous metal , transmission electron microscopy , metal , spectroscopy , composite material , analytical chemistry (journal) , crystallography , metallurgy , nanotechnology , alloy , chemistry , physics , chromatography , quantum mechanics
We present investigations on the development of microstructural inhomogeneity introduced by simple room temperature deformation for a typical bulk metallic glass (Zr 44 Ti 11 Cu 9.8 Ni 10.2 Be 25 ). The experimental evidence (e.g., transmission electron microscopy, electron energy dispersive X‐ray spectroscopy and density measurements) clearly supports that an inhomogeneous glassy structure can be produced during deformation in the bulk metallic glass, that does not depend on a specific pinpointed chemical composition. The micrometer‐sized structural inhomogeneity in the monolithic bulk metallic glass originates from deformation due to the introduction of a high concentration of free volume in the glassy phase without significant change in the local chemical composition. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)