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Designing Ductile Zr‐Based Bulk Metallic Glasses with Phase Separated Microstructure
Author(s) -
Du Xinghao,
Huang Jacob C.,
Hsieh KerChang,
Jang Jason S. C.,
Liaw Peter K.,
Chen HaiMing,
Chou HungSheng,
Lai YanHuei
Publication year - 2009
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200800370
Subject(s) - materials science , plasticity , microstructure , amorphous metal , phase (matter) , shear (geology) , homogeneous , shear band , composite material , metal , matrix (chemical analysis) , metallurgy , thermodynamics , alloy , chemistry , physics , organic chemistry
Using the thermodynamic computation, the phase‐separated Zr‐based bulk metallic glasses with a enhanced plasticity up to 20% are developed. The as‐cast microstructure is characterized by the macroscopic heterogeneities consisting of the phase‐separated regions and glassy matrix regions. The microscaled phase‐separated feature is the cause of the remarkable plasticity, and the homogeneous and concurrent formation of multiple shear bands is crucial for the plasticity improvement in metallic glasses.