TITLE

Dynamic evolution of nanoscale shear bands in a bulk-metallic glass

AUTHOR(S)
Bing Yang; Morrison, Mark L.; Liaw, Peter K.; Buchanan, Raymond A.; Gongyao Wang; Liu, Chain T.; Denda, Mitsunori
PUB. DATE
April 2005
SOURCE
Applied Physics Letters;4/4/2005, Vol. 86 Issue 14, p141904
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Dynamic shear-band-evolution processes in a bulk-metallic glass (BMG), an emerging class of materials, were captured by a state-of-the-art, high-speed, infrared camera. Many shear bands initiated, propagated, and arrested before the final fracture in tension, each with decreasing temperature, and shear-strain profiles. A free-volume-exhaustion mechanism was proposed to explain the phenomena. The results contribute to understanding and improving the limited ductility of BMGs, which otherwise have superior mechanical properties.
ACCESSION #
16669620

 

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