The effect of microalloying on mechanical properties in CuZrAl bulk metallic glass

J. Pan; Kang Cheung Chan; Q. Chen; N. Li; S. F. Guo; L. Liu

doi:10.1016/j.jallcom.2010.02.064

The effect of microalloying on mechanical properties in CuZrAl bulk metallic glass

J. Pan, Kang Cheung Chan, Q. Chen, N. Li, S. F. Guo, L. Liu

Research output: Journal article publication › Journal article › Academic research › peer-review

34 Citations (Scopus)

Abstract

The effect of the minor addition of elements Ta and Fe on the mechanical properties of the CuZrAl BMG was investigated by compression tests. It was found that the addition improves significantly the plasticity at room temperature. The compressive plastic strain enhanced from 0.59% for Cu46Zr47Al7BMG to 2.62% and 4.81% for Cu46Zr45Al7Ta2and Cu44Zr47Al7Fe2BMG, respectively. The microstructure of Cu44Zr47Al7Fe2BMG was further investigated by TEM, which reveals the occurrence of phase separation with the formation of a Cu-rich phase and a Fe-rich phase due to the minor addition of Fe. The formation of inhomogeneous structure in amorphous phase, which results in the activation of multi shear bands, can account for the improvement of the plasticity of the base BMG. The present results provide a promising approach to enhance the plasticity of BMGs through compositional and structural design by microalloying.

Original language	English
Journal	Journal of Alloys and Compounds
Volume	504
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jallcom.2010.02.064
Publication status	Published - 1 Aug 2010

Keywords

Bulk metallic glass
Microalloying
Phase separation
Plasticity

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

More information

10.1016/j.jallcom.2010.02.064

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title = "The effect of microalloying on mechanical properties in CuZrAl bulk metallic glass",

abstract = "The effect of the minor addition of elements Ta and Fe on the mechanical properties of the CuZrAl BMG was investigated by compression tests. It was found that the addition improves significantly the plasticity at room temperature. The compressive plastic strain enhanced from 0.59% for Cu46Zr47Al7BMG to 2.62% and 4.81% for Cu46Zr45Al7Ta2and Cu44Zr47Al7Fe2BMG, respectively. The microstructure of Cu44Zr47Al7Fe2BMG was further investigated by TEM, which reveals the occurrence of phase separation with the formation of a Cu-rich phase and a Fe-rich phase due to the minor addition of Fe. The formation of inhomogeneous structure in amorphous phase, which results in the activation of multi shear bands, can account for the improvement of the plasticity of the base BMG. The present results provide a promising approach to enhance the plasticity of BMGs through compositional and structural design by microalloying.",

keywords = "Bulk metallic glass, Microalloying, Phase separation, Plasticity",

author = "J. Pan and Chan, {Kang Cheung} and Q. Chen and N. Li and Guo, {S. F.} and L. Liu",

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T1 - The effect of microalloying on mechanical properties in CuZrAl bulk metallic glass

AU - Pan, J.

AU - Chan, Kang Cheung

AU - Chen, Q.

AU - Li, N.

AU - Guo, S. F.

AU - Liu, L.

PY - 2010/8/1

Y1 - 2010/8/1

N2 - The effect of the minor addition of elements Ta and Fe on the mechanical properties of the CuZrAl BMG was investigated by compression tests. It was found that the addition improves significantly the plasticity at room temperature. The compressive plastic strain enhanced from 0.59% for Cu46Zr47Al7BMG to 2.62% and 4.81% for Cu46Zr45Al7Ta2and Cu44Zr47Al7Fe2BMG, respectively. The microstructure of Cu44Zr47Al7Fe2BMG was further investigated by TEM, which reveals the occurrence of phase separation with the formation of a Cu-rich phase and a Fe-rich phase due to the minor addition of Fe. The formation of inhomogeneous structure in amorphous phase, which results in the activation of multi shear bands, can account for the improvement of the plasticity of the base BMG. The present results provide a promising approach to enhance the plasticity of BMGs through compositional and structural design by microalloying.

AB - The effect of the minor addition of elements Ta and Fe on the mechanical properties of the CuZrAl BMG was investigated by compression tests. It was found that the addition improves significantly the plasticity at room temperature. The compressive plastic strain enhanced from 0.59% for Cu46Zr47Al7BMG to 2.62% and 4.81% for Cu46Zr45Al7Ta2and Cu44Zr47Al7Fe2BMG, respectively. The microstructure of Cu44Zr47Al7Fe2BMG was further investigated by TEM, which reveals the occurrence of phase separation with the formation of a Cu-rich phase and a Fe-rich phase due to the minor addition of Fe. The formation of inhomogeneous structure in amorphous phase, which results in the activation of multi shear bands, can account for the improvement of the plasticity of the base BMG. The present results provide a promising approach to enhance the plasticity of BMGs through compositional and structural design by microalloying.

KW - Bulk metallic glass

KW - Microalloying

KW - Phase separation

KW - Plasticity

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DO - 10.1016/j.jallcom.2010.02.064

M3 - Journal article

SN - 0925-8388

VL - 504

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - SUPPL. 1

ER -

The effect of microalloying on mechanical properties in CuZrAl bulk metallic glass

Abstract

Keywords

ASJC Scopus subject areas

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