MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Influence of Indenter Geometry on the Deformation Behavior of Zr60Cu30Al10 Bulk Metallic Glass during Nanoindentation
Byung-Gil YooJu-Young KimJae-il Jang
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2007 Volume 48 Issue 7 Pages 1765-1769

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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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© 2007 The Japan Institute of Metals and Materials
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