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Kim, Ju-Young
Robust Multifunctional Materials Lab
Research Interests
  • Flexible / stretchable devices, nano-mechanics, nanoporous metal, materials reliability

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Influence of indenter geometry on the deformation behavior of Zr60Cu30Al10 bulk metallic glass during nanoindentation

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Title
Influence of indenter geometry on the deformation behavior of Zr60Cu30Al10 bulk metallic glass during nanoindentation
Author
Yoo, Byung-GilKim, Ju-YoungJang, Jae-il
Keywords
Bulk metallic glass (BMG); Indenter geometry; Nanoindentation; Serrated flow
Issue Date
2007-07
Publisher
JAPAN INST METALS
Citation
MATERIALS TRANSACTIONS, v.48, no.7, pp.1765 - 1769
Abstract
As a first step in examining a new aspect of inhomogeneous plastic flow in bulk metallic glasses (BMGs) during nanoindentation, a series of nanoindentation experiments were performed on Zr60Cu30Al10 BMG with two pyramidal indenters (Berkovich and cube-corner indenters) having different centreline-to-face angle. It was revealed that the indenter angle can be a new controllable factor affecting the serrated flow behaviour of the BMG during nanoindentation, since a sharper cube-corner indenter induces different stress field under the contact from Berkovich indenter typically used. Results are discussed in terms of preliminary ideas for improving analysis of the shear-band-ruled deformation behaviours in the BMG during nanoindentation.
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DOI
10.2320/matertrans.MJ200752
ISSN
1345-9678
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MSE_Journal Papers
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