Unusual room temperature ductility of a Zr-based bulk metallic glass containing nanoparticles

J. B. Qiang; W. Zhang; G. Q. Xie; A. Inoue

doi:10.1063/1.2746071

Unusual room temperature ductility of a Zr-based bulk metallic glass containing nanoparticles

J. B. Qiang, W. Zhang, G. Q. Xie, A. Inoue

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

41 Citations (Scopus)

Abstract

Highly ductile Zr65 Al7.5 Cu27.5 bulk metallic glass (BMG) containing nanometer scaled fcc phase was obtained by copper mold casting. Room temperature compression tests revealed superior mechanical properties of the alloy: yielding stress of 1670 MPa, Young's modulus of 90 GPa, elastic strain of 2%, and especially a remarkable plasticity of over 50%. The marginal BMG is a useful model system to examine the nanocrystal coalescence model and the shear-transformation-zone model proposed for large scale plastic deformations of metallic glasses.

Original language	English
Article number	231907
Journal	Applied Physics Letters
Volume	90
Issue number	23
DOIs	https://doi.org/10.1063/1.2746071
Publication status	Published - 2007
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2746071

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title = "Unusual room temperature ductility of a Zr-based bulk metallic glass containing nanoparticles",

abstract = "Highly ductile Zr65 Al7.5 Cu27.5 bulk metallic glass (BMG) containing nanometer scaled fcc phase was obtained by copper mold casting. Room temperature compression tests revealed superior mechanical properties of the alloy: yielding stress of 1670 MPa, Young's modulus of 90 GPa, elastic strain of 2%, and especially a remarkable plasticity of over 50%. The marginal BMG is a useful model system to examine the nanocrystal coalescence model and the shear-transformation-zone model proposed for large scale plastic deformations of metallic glasses.",

author = "Qiang, {J. B.} and W. Zhang and Xie, {G. Q.} and A. Inoue",

note = "Funding Information: This work was financially supported by the Grant-in-Aid for Young Scientists (B) and Research and Development Project on Advanced Metallic Glasses, Inorganic Materials and Joining Technology from the Ministry of Education, Science, Sports, and Culture of Japan.",

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doi = "10.1063/1.2746071",

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AU - Qiang, J. B.

AU - Zhang, W.

AU - Xie, G. Q.

AU - Inoue, A.

N1 - Funding Information: This work was financially supported by the Grant-in-Aid for Young Scientists (B) and Research and Development Project on Advanced Metallic Glasses, Inorganic Materials and Joining Technology from the Ministry of Education, Science, Sports, and Culture of Japan.

PY - 2007

Y1 - 2007

N2 - Highly ductile Zr65 Al7.5 Cu27.5 bulk metallic glass (BMG) containing nanometer scaled fcc phase was obtained by copper mold casting. Room temperature compression tests revealed superior mechanical properties of the alloy: yielding stress of 1670 MPa, Young's modulus of 90 GPa, elastic strain of 2%, and especially a remarkable plasticity of over 50%. The marginal BMG is a useful model system to examine the nanocrystal coalescence model and the shear-transformation-zone model proposed for large scale plastic deformations of metallic glasses.

AB - Highly ductile Zr65 Al7.5 Cu27.5 bulk metallic glass (BMG) containing nanometer scaled fcc phase was obtained by copper mold casting. Room temperature compression tests revealed superior mechanical properties of the alloy: yielding stress of 1670 MPa, Young's modulus of 90 GPa, elastic strain of 2%, and especially a remarkable plasticity of over 50%. The marginal BMG is a useful model system to examine the nanocrystal coalescence model and the shear-transformation-zone model proposed for large scale plastic deformations of metallic glasses.

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Unusual room temperature ductility of a Zr-based bulk metallic glass containing nanoparticles

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