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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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Loading rate effect on inelastic deformation in a Zr-based bulk metallic glass

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Title
Loading rate effect on inelastic deformation in a Zr-based bulk metallic glass
Author
Lee, Y. -H.Kim, Ju-YoungNahm, S. H.Kwon, D
Keywords
Loading rate; Nanoindentation; Pile-up volume; Shear band; Yield criterion
Issue Date
2007-03
Publisher
ELSEVIER SCIENCE SA
Citation
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.449-451, no., pp.185 - 188
Abstract
In order to study the loading rate-sensitive shear band formation, nanoindentation tests with a cube corner indenter were carried out on Zr55Al10Ni5Cu30 (numbers indicate at.%) amorphous alloy. Significant influence of the loading rate on the inelastic deformation was studied by analyzing the remnant indent morphology using three-dimensional visualization tools. Indented volume increased (in contrast, pile-up volume upheaved around indent decreased) with the increase of loading rate. The deformation morphology change was discussed from the susceptibility of multidirectional shearing at high loading rate by the increase of hydrostatic stress.
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DOI
10.1016/j.msea.2006.02.411
ISSN
0921-5093
Appears in Collections:
MSE_Journal Papers
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