Compressive fracture characteristics of Ni42Cu5Ti19Zr22.5Al8Si3.5 bulk metallic glass

W. Z. Liang; J. Shen; J. F. Sun; L. Z. Wu; P. K. Liaw

doi:10.1016/j.msea.2008.07.040

Compressive fracture characteristics of Ni₄₂Cu₅Ti₁₉Zr_22.5Al₈Si_3.5 bulk metallic glass

W. Z. Liang
, J. Shen^*
, J. F. Sun
, L. Z. Wu
, P. K. Liaw

^*Corresponding author for this work

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

7 Scopus citations

Abstract

The uniaxial compressive fracture behavior of Ni₄₂Cu₅Ti₁₉Zr_22.5Al₈Si_3.5 bulk metallic glass (BMG) was investigated. It was found that the 2 mm rod exhibited a high fracture strength of 2851 MPa and plastic strain of 0.5%, while the 3 mm sample showed a fracture strength of 2724 MPa and nearly zero plastic strain. The property difference in the two samples was explained due to different structure caused by different cooling rates in glass formation. The compressive fracture surfaces of the deformed samples consisted of a flat shear zone and a coarse zone. The compressive fracture angles between the stress axis and the fracture plane changed from <45 to 90° as the fracture proceeded, suggesting that the compression fracture mechanism of the alloy might be understood in terms of the ellipse criterion.

Original language	English
Pages (from-to)	378-382
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	497
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2008.07.040
State	Published - 15 Dec 2008
Externally published	Yes

Keywords

Bulk metallic glasses
Fracture mode
Mechanical properties

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10.1016/j.msea.2008.07.040

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title = "Compressive fracture characteristics of Ni42Cu5Ti19Zr22.5Al8Si3.5 bulk metallic glass",

abstract = "The uniaxial compressive fracture behavior of Ni42Cu5Ti19Zr22.5Al8Si3.5 bulk metallic glass (BMG) was investigated. It was found that the 2 mm rod exhibited a high fracture strength of 2851 MPa and plastic strain of 0.5\%, while the 3 mm sample showed a fracture strength of 2724 MPa and nearly zero plastic strain. The property difference in the two samples was explained due to different structure caused by different cooling rates in glass formation. The compressive fracture surfaces of the deformed samples consisted of a flat shear zone and a coarse zone. The compressive fracture angles between the stress axis and the fracture plane changed from <45 to 90° as the fracture proceeded, suggesting that the compression fracture mechanism of the alloy might be understood in terms of the ellipse criterion.",

keywords = "Bulk metallic glasses, Fracture mode, Mechanical properties",

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year = "2008",

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day = "15",

doi = "10.1016/j.msea.2008.07.040",

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TY - JOUR

T1 - Compressive fracture characteristics of Ni42Cu5Ti19Zr22.5Al8Si3.5 bulk metallic glass

AU - Liang, W. Z.

AU - Shen, J.

AU - Sun, J. F.

AU - Wu, L. Z.

AU - Liaw, P. K.

PY - 2008/12/15

Y1 - 2008/12/15

N2 - The uniaxial compressive fracture behavior of Ni42Cu5Ti19Zr22.5Al8Si3.5 bulk metallic glass (BMG) was investigated. It was found that the 2 mm rod exhibited a high fracture strength of 2851 MPa and plastic strain of 0.5%, while the 3 mm sample showed a fracture strength of 2724 MPa and nearly zero plastic strain. The property difference in the two samples was explained due to different structure caused by different cooling rates in glass formation. The compressive fracture surfaces of the deformed samples consisted of a flat shear zone and a coarse zone. The compressive fracture angles between the stress axis and the fracture plane changed from <45 to 90° as the fracture proceeded, suggesting that the compression fracture mechanism of the alloy might be understood in terms of the ellipse criterion.

AB - The uniaxial compressive fracture behavior of Ni42Cu5Ti19Zr22.5Al8Si3.5 bulk metallic glass (BMG) was investigated. It was found that the 2 mm rod exhibited a high fracture strength of 2851 MPa and plastic strain of 0.5%, while the 3 mm sample showed a fracture strength of 2724 MPa and nearly zero plastic strain. The property difference in the two samples was explained due to different structure caused by different cooling rates in glass formation. The compressive fracture surfaces of the deformed samples consisted of a flat shear zone and a coarse zone. The compressive fracture angles between the stress axis and the fracture plane changed from <45 to 90° as the fracture proceeded, suggesting that the compression fracture mechanism of the alloy might be understood in terms of the ellipse criterion.

KW - Bulk metallic glasses

KW - Fracture mode

KW - Mechanical properties

UR - https://www.scopus.com/pages/publications/53349167227

U2 - 10.1016/j.msea.2008.07.040

DO - 10.1016/j.msea.2008.07.040

M3 - 文章

AN - SCOPUS:53349167227

SN - 0921-5093

VL - 497

SP - 378

EP - 382

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - 1-2

ER -

Compressive fracture characteristics of Ni₄₂Cu₅Ti₁₉Zr_22.5Al₈Si_3.5 bulk metallic glass

Abstract

Keywords

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