期刊
JOURNAL OF APPLIED PHYSICS
卷 106, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3267880
关键词
brittleness; calcium alloys; dysprosium alloys; fracture; iron alloys; magnesium alloys; metallic glasses; nanopatterning; nanostructured materials; terbium alloys; zirconium alloys
资金
- NSF of China [50731008]
- CAS
- MOST 973 [2007CB613904]
We report the observation of nanoscale striped periodic pattern with similar distinctive characteristics independent of loading conditions on the fracture surface of various bulk metallic glasses. We demonstrate that the periodic stripes are formed by the orderly assembly of nanoscale regular dimples. The similarities between our observed striped pattern and various unequilibrium systems such as oscillating granular and colloidal suspensions systems are found. By drawing an analogy between glassy and granular materials, we propose a model that can capture and simulate the characteristics of the observed corrugations. Our results would provide insight into the origin of fracture surface roughening in brittle materials.
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