Strain burst speeds in metallic glass micropillars

Y. H. Lai; H. M. Chen; C. J. Lee; J. C. Huang; J. S.C. Jang

doi:10.1016/j.intermet.2010.02.037

Strain burst speeds in metallic glass micropillars

Y. H. Lai, H. M. Chen, C. J. Lee, J. C. Huang, J. S.C. Jang

Graduate Institute of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Uniaxial microcompression and nanoscratch tests using the nanoindentation system on the Mg-, Au- and Zr-based metallic glass micropillars with diameters of 3.8 and 1 μm were performed and compared. Strain burst phenomena were observed in all microcompression tests as indications of localized shearing. The strain burst speed of micropillars can be measured based on the raw displacement-time profile. The results indicate that strain burst speed of metallic glasses increases with increasing sample size, with decreasing wear resistance, and with decreasing ductility. The current study demonstrates that strain burst speed and wear characteristics can be regarded as promising indicators for the ductility of metallic glasses.

Original language	English
Pages (from-to)	1893-1897
Number of pages	5
Journal	Intermetallics
Volume	18
Issue number	10
DOIs	https://doi.org/10.1016/j.intermet.2010.02.037
State	Published - Oct 2010

Keywords

B. Glasses, metallic
B. Mechanical properties at ambient temperature
B. Plastic deformation mechanisms
F. Mechanical testing

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10.1016/j.intermet.2010.02.037

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title = "Strain burst speeds in metallic glass micropillars",

abstract = "Uniaxial microcompression and nanoscratch tests using the nanoindentation system on the Mg-, Au- and Zr-based metallic glass micropillars with diameters of 3.8 and 1 μm were performed and compared. Strain burst phenomena were observed in all microcompression tests as indications of localized shearing. The strain burst speed of micropillars can be measured based on the raw displacement-time profile. The results indicate that strain burst speed of metallic glasses increases with increasing sample size, with decreasing wear resistance, and with decreasing ductility. The current study demonstrates that strain burst speed and wear characteristics can be regarded as promising indicators for the ductility of metallic glasses.",

keywords = "B. Glasses, metallic, B. Mechanical properties at ambient temperature, B. Plastic deformation mechanisms, F. Mechanical testing",

author = "Lai, {Y. H.} and Chen, {H. M.} and Lee, {C. J.} and Huang, {J. C.} and Jang, {J. S.C.}",

note = "Funding Information: The authors would like to acknowledge the sponsorship from National Science Council of Taiwan under the project numbers of NSC 95-2221-E-013-MY3 and NSC-95-2221-E-015-MY3 , and the long-termed support from the Nano Center of NSYSU .",

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doi = "10.1016/j.intermet.2010.02.037",

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volume = "18",

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T1 - Strain burst speeds in metallic glass micropillars

AU - Lai, Y. H.

AU - Chen, H. M.

AU - Lee, C. J.

AU - Huang, J. C.

AU - Jang, J. S.C.

N1 - Funding Information: The authors would like to acknowledge the sponsorship from National Science Council of Taiwan under the project numbers of NSC 95-2221-E-013-MY3 and NSC-95-2221-E-015-MY3 , and the long-termed support from the Nano Center of NSYSU .

PY - 2010/10

Y1 - 2010/10

N2 - Uniaxial microcompression and nanoscratch tests using the nanoindentation system on the Mg-, Au- and Zr-based metallic glass micropillars with diameters of 3.8 and 1 μm were performed and compared. Strain burst phenomena were observed in all microcompression tests as indications of localized shearing. The strain burst speed of micropillars can be measured based on the raw displacement-time profile. The results indicate that strain burst speed of metallic glasses increases with increasing sample size, with decreasing wear resistance, and with decreasing ductility. The current study demonstrates that strain burst speed and wear characteristics can be regarded as promising indicators for the ductility of metallic glasses.

AB - Uniaxial microcompression and nanoscratch tests using the nanoindentation system on the Mg-, Au- and Zr-based metallic glass micropillars with diameters of 3.8 and 1 μm were performed and compared. Strain burst phenomena were observed in all microcompression tests as indications of localized shearing. The strain burst speed of micropillars can be measured based on the raw displacement-time profile. The results indicate that strain burst speed of metallic glasses increases with increasing sample size, with decreasing wear resistance, and with decreasing ductility. The current study demonstrates that strain burst speed and wear characteristics can be regarded as promising indicators for the ductility of metallic glasses.

KW - B. Glasses, metallic

KW - B. Mechanical properties at ambient temperature

KW - B. Plastic deformation mechanisms

KW - F. Mechanical testing

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U2 - 10.1016/j.intermet.2010.02.037

DO - 10.1016/j.intermet.2010.02.037

M3 - 期刊論文

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SN - 0966-9795

VL - 18

SP - 1893

EP - 1897

JO - Intermetallics

JF - Intermetallics

IS - 10

ER -

Strain burst speeds in metallic glass micropillars

Abstract

Keywords

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