Shear bands in metallic glasses are not necessarily hot
نویسندگان
چکیده
منابع مشابه
Effective temperature dynamics of shear bands in metallic glasses.
We study the plastic deformation of bulk metallic glasses with shear transformation zone (STZ) theory, a physical model for plasticity in amorphous systems, and compare it with experimental data. In STZ theory, plastic deformation occurs when localized regions rearrange due to applied stress and the density of these regions is determined by a dynamically evolving effective disorder temperature....
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At room temperature, plastic flow of metallic glasses (MGs) is sharply localized in shear bands, which are a key feature of the plastic deformation in MGs. Despite their clear importance and decades of study, the conditions for formation of shear bands, their structural evolution and multiplication mechanism are still under debate. In this work, we investigate the local conditions at shear band...
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ژورنال
عنوان ژورنال: APL Materials
سال: 2014
ISSN: 2166-532X
DOI: 10.1063/1.4895605