Further evidence for room temperature, indentation-induced nanocrystallization in a bulk metallic glass

Title
Further evidence for room temperature, indentation-induced nanocrystallization in a bulk metallic glass
Authors
유병길최인철김용재서진유Ramamurty, Upadrasta장재일
Keywords
bulk metallic glass; nanoindentation; nanocrystallization
Issue Date
2012-05
Publisher
Materials science & engineering. A, Structural materials : properties, microstructure and processing
Citation
VOL 545, 225-228
Abstract
Room temperature nanoindentation experiments, employing two different pyramidal (Berkovich and cube-corner) indenters, were performed on a Zr-based bulk metallic glass (BMG) to critically examine the possibility of indentation-induced nanocrystallization in BMGs. Cross-sectional transmission electron microscopy images obtained from high angle annular dark field (HAADF) and high resolution (HR) modes clearly indicate to the occurrence of nanocrystallization. Pronounced nanocrystallite formation in the case of sharper cube-corner indenter suggests that the structural transformation is favored by the high strains introduced during nanoindentation.
URI
http://pubs.kist.re.kr/handle/201004/42201
ISSN
09215093
Appears in Collections:
KIST Publication > Article
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