منابع مشابه
Fracture of brittle metallic glasses: brittleness or plasticity.
We report a brittle Mg-based bulk metallic glass which approaches the ideal brittle behavior. However, a dimple structure is observed at the fracture surface by high resolution scanning electron microscopy, indicating some type of "ductile" fracture mechanism in this very brittle glass. We also show, from the available data, a clear correlation between the fracture toughness and plastic process...
متن کاملComposition Effect on Intrinsic Plasticity or Brittleness in Metallic Glasses
The high plasticity of metallic glasses is highly desirable for a wide range of novel engineering applications. However, the physical origin of the ductile/brittle behaviour of metallic glasses with various compositions and thermal histories has not been fully clarified. Here we have found that metallic glasses with compositions at or near intermetallic compounds, in contrast to the ones at or ...
متن کاملNanoscale Solute Partitioning in Bulk Metallic Glasses
Adv. Mater. 2008, 20, 1–4 2008 WILEY-VCH Verlag Gmb A T IO N Fundamental understanding of composition variations and morphology in the nanoscale is essential to the design of advanced materials. Partial crystallization or devitrification of bulk metallic glasses (BMGs) results in novel microstructures, with high density (10–10m ) nanocrystalline precipitates evenly distributed in a glassy matri...
متن کاملFracture Behaviour of Bulk Metallic Glasses
will preside Professor P. Balaram, Director Date : Tuesday, 11th October 2011 Venue : Faculty Hall, Main Building Time : 4-00 p.m INDIAN INSTITUTE OF SCIENCE BANGALORE Fracture Behaviour of Bulk Metallic Glasses Cordially invites you to the on by Professor Narasimhan Ramarathnam Department of Mechanical Engineering INSTITUTE COLLOQUIUM Tea: 5-15 p.m Reception Hall Bulk Metallic Glasses (BMGs) a...
متن کاملShear Band Formation in Bulk Metallic Glasses
In recent times, there has been a growing interest in the machining of amorphous metallic alloys, which are also called bulk metallic glasses (BMGs). These materials differ from common polycrystalline metallic alloys, because their atoms do not assemble on a crystalline lattice, and as a result, they have unique physical, mechanical, and chemical properties. A number of BMGs have been found to ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Materials Today
سال: 2007
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(07)70065-2