Effect of the nanoindentation rate on the shear band formation in an Au-based bulk metallic glass

B. Yang; T. G. Nieh

doi:10.1016/j.actamat.2006.08.028

Effect of the nanoindentation rate on the shear band formation in an Au-based bulk metallic glass

B. Yang, T. G. Nieh^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

102 Citations (Scopus)

Abstract

This study investigated the nanoindentation behavior of Au₄₉Ag_5.5Pd_2.3Cu_26.9Si_16.3 bulk metallic glass samples at loading rates ranging from 0.03 to 300 mN s^-1. Notable shear band pop-in events were observed. The pop-in size was observed to increase linearly with the load and decreased exponentially with the strain rate. A free-volume mechanism was proposed for interpreting these observations quantitatively. The results and analyses also shed light on the shear band nucleation and evolution processes in bulk metallic glasses. © 2006 Acta Materialia Inc.

Original language	English
Pages (from-to)	295-300
Journal	Acta Materialia
Volume	55
Issue number	1
DOIs	https://doi.org/10.1016/j.actamat.2006.08.028
Publication status	Published - Jan 2007
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Deformation inhomogeneities
Hardness
Metallic glasses
Plastic deformation

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title = "Effect of the nanoindentation rate on the shear band formation in an Au-based bulk metallic glass",

abstract = "This study investigated the nanoindentation behavior of Au49Ag5.5Pd2.3Cu26.9Si16.3 bulk metallic glass samples at loading rates ranging from 0.03 to 300 mN s-1. Notable shear band pop-in events were observed. The pop-in size was observed to increase linearly with the load and decreased exponentially with the strain rate. A free-volume mechanism was proposed for interpreting these observations quantitatively. The results and analyses also shed light on the shear band nucleation and evolution processes in bulk metallic glasses. {\textcopyright} 2006 Acta Materialia Inc.",

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AU - Yang, B.

AU - Nieh, T. G.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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N2 - This study investigated the nanoindentation behavior of Au49Ag5.5Pd2.3Cu26.9Si16.3 bulk metallic glass samples at loading rates ranging from 0.03 to 300 mN s-1. Notable shear band pop-in events were observed. The pop-in size was observed to increase linearly with the load and decreased exponentially with the strain rate. A free-volume mechanism was proposed for interpreting these observations quantitatively. The results and analyses also shed light on the shear band nucleation and evolution processes in bulk metallic glasses. © 2006 Acta Materialia Inc.

AB - This study investigated the nanoindentation behavior of Au49Ag5.5Pd2.3Cu26.9Si16.3 bulk metallic glass samples at loading rates ranging from 0.03 to 300 mN s-1. Notable shear band pop-in events were observed. The pop-in size was observed to increase linearly with the load and decreased exponentially with the strain rate. A free-volume mechanism was proposed for interpreting these observations quantitatively. The results and analyses also shed light on the shear band nucleation and evolution processes in bulk metallic glasses. © 2006 Acta Materialia Inc.

KW - Deformation inhomogeneities

KW - Hardness

KW - Metallic glasses

KW - Plastic deformation

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DO - 10.1016/j.actamat.2006.08.028

M3 - RGC 21 - Publication in refereed journal

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VL - 55

SP - 295

EP - 300

JO - Acta Materialia

JF - Acta Materialia

IS - 1

ER -

Effect of the nanoindentation rate on the shear band formation in an Au-based bulk metallic glass

Abstract

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Research Keywords

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